{
  "title": "Cartesian System (Coordinate Geometry) - Grade 9 ICSE",
  "total_questions": 60,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "In Cartesian plane, horizontal line is called ______. 📍", "options": {"A": "y-axis", "B": "x-axis", "C": "origin", "D": "quadrant"}, "correct_answer": "B"},
    {"id": 2, "difficulty": "easy", "question": "Point where x-axis and y-axis meet is called ______.", "options": {"A": "origin", "B": "vertex", "C": "center", "D": "midpoint"}, "correct_answer": "A"},
    {"id": 3, "difficulty": "easy", "question": "Coordinates of origin are ______.", "options": {"A": "(1,0)", "B": "(0,1)", "C": "(0,0)", "D": "(1,1)"}, "correct_answer": "C"},
    {"id": 4, "difficulty": "easy", "question": "In point (5,3), 5 is ______ coordinate.", "options": {"A": "y", "B": "x", "C": "origin", "D": "zero"}, "correct_answer": "B"},
    {"id": 5, "difficulty": "easy", "question": "Point (0,4) lies on ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "origin", "D": "quadrant I"}, "correct_answer": "B"},
    {"id": 6, "difficulty": "easy", "question": "How many quadrants are there in Cartesian plane?", "options": {"A": "2", "B": "3", "C": "4", "D": "5"}, "correct_answer": "C"},
    {"id": 7, "difficulty": "easy", "question": "Point (-3, -5) lies in quadrant ______.", "options": {"A": "I", "B": "II", "C": "III", "D": "IV"}, "correct_answer": "C"},
    {"id": 8, "difficulty": "easy", "question": "Point (2, -3) lies in quadrant ______.", "options": {"A": "I", "B": "II", "C": "III", "D": "IV"}, "correct_answer": "D"},
    {"id": 9, "difficulty": "easy", "question": "Signs in quadrant II are ______.", "options": {"A": "(+,+)", "B": "(-,+)", "C": "(-,-)", "D": "(+,-)"}, "correct_answer": "B"},
    {"id": 10, "difficulty": "easy", "question": "Point (7,0) lies on ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "origin", "D": "quadrant I"}, "correct_answer": "A"},
    {"id": 11, "difficulty": "easy", "question": "Coordinates are written as ( __ , __ ).", "options": {"A": "y,x", "B": "x,y", "C": "a,b", "D": "b,a"}, "correct_answer": "B"},
    {"id": 12, "difficulty": "easy", "question": "Point with x=0, y=0 is ______.", "options": {"A": "on x-axis", "B": "on y-axis", "C": "origin", "D": "in QI"}, "correct_answer": "C"},
    {"id": 13, "difficulty": "easy", "question": "Abscissa is the ______ coordinate.", "options": {"A": "x", "B": "y", "C": "first", "D": "A & C"}, "correct_answer": "D"},
    {"id": 14, "difficulty": "easy", "question": "Ordinate is the ______ coordinate.", "options": {"A": "x", "B": "y", "C": "second", "D": "B & C"}, "correct_answer": "D"},
    {"id": 15, "difficulty": "easy", "question": "Point ( -4, 5) has abscissa = ?", "options": {"A": "-4", "B": "5", "C": "4", "D": "-5"}, "correct_answer": "A"},
    {"id": 16, "difficulty": "easy", "question": "Point (6, -2) has ordinate = ?", "options": {"A": "6", "B": "-2", "C": "2", "D": "-6"}, "correct_answer": "B"},
    {"id": 17, "difficulty": "easy", "question": "If ordinate is 0, point lies on ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "origin", "D": "quadrant"}, "correct_answer": "A"},
    {"id": 18, "difficulty": "easy", "question": "If abscissa is 0, point lies on ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "origin", "D": "none"}, "correct_answer": "B"},
    {"id": 19, "difficulty": "easy", "question": "Quadrant IV has signs ______.", "options": {"A": "(+,+)", "B": "(-,+)", "C": "(-,-)", "D": "(+,-)"}, "correct_answer": "D"},
    {"id": 20, "difficulty": "easy", "question": "Which point lies on y-axis?", "options": {"A": "(3,0)", "B": "(0,5)", "C": "(2,2)", "D": "(-1,-1)"}, "correct_answer": "B"},
    {"id": 21, "difficulty": "medium", "question": "Point P(3,4) lies in quadrant ______.", "options": {"A": "I", "B": "II", "C": "III", "D": "IV"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "Mirror image of (5,2) over x-axis is ______.", "options": {"A": "(-5,2)", "B": "(5,-2)", "C": "(-5,-2)", "D": "(2,5)"}, "correct_answer": "B"},
    {"id": 23, "difficulty": "medium", "question": "Point symmetric to (-3,7) about origin is ______.", "options": {"A": "(3,-7)", "B": "(-3,-7)", "C": "(3,7)", "D": "(7,-3)"}, "correct_answer": "A"},
    {"id": 24, "difficulty": "medium", "question": "Distance of point (4,0) from y-axis is ______.", "options": {"A": "4", "B": "0", "C": "1", "D": "2"}, "correct_answer": "A"},
    {"id": 25, "difficulty": "medium", "question": "Point equidistant from both axes in QI could be ______.", "options": {"A": "(3,3)", "B": "(3,-3)", "C": "(-3,3)", "D": "(0,3)"}, "correct_answer": "A"},
    {"id": 26, "difficulty": "medium", "question": "If (a, b) lies on x-axis, then b = ?", "options": {"A": "0", "B": "a", "C": "1", "D": "-1"}, "correct_answer": "A"},
    {"id": 27, "difficulty": "medium", "question": "Point (0, -8) lies on ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "origin", "D": "QIII"}, "correct_answer": "B"},
    {"id": 28, "difficulty": "medium", "question": "If a point is of form (k, k), k≠0, it lies ______.", "options": {"A": "on x-axis", "B": "on y-axis", "C": "on line y=x", "D": "on origin"}, "correct_answer": "C"},
    {"id": 29, "difficulty": "medium", "question": "Abscissa of point on y-axis is always ______.", "options": {"A": "positive", "B": "negative", "C": "zero", "D": "one"}, "correct_answer": "C"},
    {"id": 30, "difficulty": "medium", "question": "Point ( -2, 3) lies in quadrant ______.", "options": {"A": "I", "B": "II", "C": "III", "D": "IV"}, "correct_answer": "B"},
    {"id": 31, "difficulty": "medium", "question": "Which point is in QIII?", "options": {"A": "(1,2)", "B": "(-1,2)", "C": "(-1,-2)", "D": "(1,-2)"}, "correct_answer": "C"},
    {"id": 32, "difficulty": "medium", "question": "If point (x, y) has x>0, y<0, it is in quadrant ______.", "options": {"A": "I", "B": "II", "C": "III", "D": "IV"}, "correct_answer": "D"},
    {"id": 33, "difficulty": "medium", "question": "Point (√3, √3) lies in ______.", "options": {"A": "QI", "B": "QII", "C": "QIII", "D": "QIV"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "Point (-5.2, 0) lies on ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "QII", "D": "origin"}, "correct_answer": "A"},
    {"id": 35, "difficulty": "medium", "question": "If (p, q) is in QII, then p _ 0, q _ 0.", "options": {"A": "< , >", "B": "> , >", "C": "< , <", "D": "> , <"}, "correct_answer": "A"},
    {"id": 36, "difficulty": "medium", "question": "Coordinates of point 4 units left of y-axis and 3 units above x-axis?", "options": {"A": "(4,3)", "B": "(-4,3)", "C": "(4,-3)", "D": "(-4,-3)"}, "correct_answer": "B"},
    {"id": 37, "difficulty": "medium", "question": "Point (0, -9) is on negative ______.", "options": {"A": "x-axis", "B": "y-axis", "C": "origin", "D": "QIV"}, "correct_answer": "B"},
    {"id": 38, "difficulty": "medium", "question": "Point (a, -a) where a>0 lies in quadrant ______.", "options": {"A": "I", "B": "II", "C": "III", "D": "IV"}, "correct_answer": "D"},
    {"id": 39, "difficulty": "medium", "question": "The axes divide plane into ______ regions.", "options": {"A": "2", "B": "3", "C": "4", "D": "infinite"}, "correct_answer": "C"},
    {"id": 40, "difficulty": "medium", "question": "Which is not a quadrant point?", "options": {"A": "(1,1)", "B": "(-2,3)", "C": "(0,4)", "D": "(-5,-6)"}, "correct_answer": "C"},
    {"id": 41, "difficulty": "hard", "question": "If point (k-2, k+3) lies on x-axis, find k. 🤔", "options": {"A": "-3", "B": "2", "C": "0", "D": "3"}, "correct_answer": "A"},
    {"id": 42, "difficulty": "hard", "question": "Point (2a+1, a-1) lies in QIV. Possible value of a?", "options": {"A": "0.5", "B": "-1", "C": "2", "D": "1"}, "correct_answer": "A"},
    {"id": 43, "difficulty": "hard", "question": "If (x, y) is such that x=y and x>0, point lies ______.", "options": {"A": "on x-axis", "B": "on y-axis", "C": "on line y=x in QI", "D": "origin"}, "correct_answer": "C"},
    {"id": 44, "difficulty": "hard", "question": "Point equidistant from axes in QII has coordinates of form ______.", "options": {"A": "(a,a), a>0", "B": "(-a,a), a>0", "C": "(-a,-a), a>0", "D": "(a,-a), a>0"}, "correct_answer": "B"},
    {"id": 45, "difficulty": "hard", "question": "If point P(3p-1, 2p+1) lies on line x=y, find p.", "options": {"A": "2", "B": "0", "C": "-2", "D": "1"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "hard", "question": "Point (|a|, -|b|) where a,b≠0 lies in ______.", "options": {"A": "QI", "B": "QII", "C": "QIII", "D": "QIV"}, "correct_answer": "D"},
    {"id": 47, "difficulty": "hard", "question": "If (2,3) and (4,3) are two points, they lie on a line ______ to x-axis.", "options": {"A": "parallel", "B": "perpendicular", "C": "slanted", "D": "same"}, "correct_answer": "A"},
    {"id": 48, "difficulty": "hard", "question": "Point (sin 90°, cos 0°) has coordinates ______.", "options": {"A": "(1,1)", "B": "(0,1)", "C": "(1,0)", "D": "(0,0)"}, "correct_answer": "A"},
    {"id": 49, "difficulty": "hard", "question": "If abscissa = ordinate and both negative, point lies in ______.", "options": {"A": "QI", "B": "QII", "C": "QIII", "D": "QIV"}, "correct_answer": "C"},
    {"id": 50, "difficulty": "hard", "question": "Point (log 1, log 10) = ______.", "options": {"A": "(0,1)", "B": "(1,0)", "C": "(1,1)", "D": "(0,0)"}, "correct_answer": "A"},
    {"id": 51, "difficulty": "hard", "question": "Point (2t, t-5) lies on y-axis when t = ?", "options": {"A": "0", "B": "2", "C": "5", "D": "-5"}, "correct_answer": "A"},
    {"id": 52, "difficulty": "hard", "question": "If (a+b, a-b) lies in QI, which is true?", "options": {"A": "a>0, b>0", "B": "a>b>0", "C": "a>0, b<0", "D": "a<b"}, "correct_answer": "B"},
    {"id": 53, "difficulty": "hard", "question": "Mirror image of (-4, -7) over y-axis is ______.", "options": {"A": "(4,-7)", "B": "(-4,7)", "C": "(4,7)", "D": "(-7,-4)"}, "correct_answer": "A"},
    {"id": 54, "difficulty": "hard", "question": "Point (0, -√5) lies on ______.", "options": {"A": "negative x-axis", "B": "negative y-axis", "C": "origin", "D": "QIV"}, "correct_answer": "B"},
    {"id": 55, "difficulty": "hard", "question": "If point lies on x-axis and is 5 units left of origin, coordinates?", "options": {"A": "(-5,0)", "B": "(5,0)", "C": "(0,-5)", "D": "(0,5)"}, "correct_answer": "A"},
    {"id": 56, "difficulty": "hard", "question": "Coordinates of point symmetric to (a,b) about x-axis are ______.", "options": {"A": "(a,-b)", "B": "(-a,b)", "C": "(-a,-b)", "D": "(b,a)"}, "correct_answer": "A"},
    {"id": 57, "difficulty": "hard", "question": "If (k, 3) and (4, k) are same point, then k = ?", "options": {"A": "2", "B": "3", "C": "4", "D": "0"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "hard", "question": "Point (|x|, |y|) where x<0, y>0 lies in ______.", "options": {"A": "QI", "B": "QII", "C": "QIII", "D": "QIV"}, "correct_answer": "A"},
    {"id": 59, "difficulty": "hard", "question": "If ordinate = 2 × abscissa and point in QIII, then signs?", "options": {"A": "both negative", "B": "x negative, y positive", "C": "x positive, y negative", "D": "both positive"}, "correct_answer": "A"},
    {"id": 60, "difficulty": "hard", "question": "Point (2m-6, 4-m) lies on x-axis. Find m.", "options": {"A": "4", "B": "6", "C": "2", "D": "0"}, "correct_answer": "A"}
  ]
}