Gujarat BoardEnglish MediumSTD 9MathsCoordinate Geometry1 Mark
MCQ
Which of the following points does not lie in any quadrant?
A
(1, 7)
B
(2, 10)
C
(-1, 1)
D
(4, 12)
✓
Answer
(4, 12) Solution: For the point to lie on the line y = 3x + 4, it has to satisfy the equation of the line. Putting x = 1, in y = 3x + 4, we get y = 3(1) + 4 ⇒ y = 7 So, the point satisfies the equation and hence lies on the given line. Putting x = 2, in y = 3x + 4, we get y = 3(2) + 4 ⇒ y = 10 So, the point satisfies the equation and hence lies on the given line. Putting x = 1, in y = 3x + 4, we get y = 3(-1) + 4 ⇒ y = 1 So, the point satisfies the equation and hence lies on the given line. Putting x = 4, in y = 3x + 4, we get y = 3(4) + 4 ⇒ y = 16 But y = 12. So, the point not satisfy the equation and hence lies on the given line.
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