A line intersects the y-axis and x-axis at the points P and Q respectively
Coordinate Geometry (10)A line intersects the y-axis and x-axis at the points P and Q respectively. If (2, -5) is the mid-point of PQ, then find the coordinates of P and Q.
Answer
Let the coordinates of points P and Q be (0, b) and (a, 0) respectively.
$$ \frac{a}{2} = 2 $$
a = 4
$$ \frac{b}{2} = -5 $$
b = -10
P(0, -10) and Q(4, 0)
Exam Year:
2017
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