What is the equation of the line PQ?...
What is the equation of the line PQ?
A.
y = x - 5
B.
y = x + 3
C.
y = x + 5
D.
y = 2x + 3
E.
y = 2x - 3
Correct answer is C
The points P(-2, 3) and Q(2, 7) are on the line.
Gradient of the line = 7−32−(−2)
= 44
= 1
y = x + b
To find the intercept, we have
7 = 2 + b or 3 = -2 + b.
Solving for b, we get b = 5.
∴ The line is y = x + 5.
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