Question

Which of these is a point-slope equation of the line that is perpendicular to y-25 = 2(x - 10) and passes through (-3, 7)?

A. y-7 = -1/2(x+3)
B. y- 7 = -2(x+3)
c. y + 7 = 2(x-3)
D. Y+7 =-1/2 (x-3)
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Answer 1

Answer: y-7 = 1/2 (x + 3) is the correct answer

Step-by-step explanation: I just took the exam :)

Answer 2

B. y-7 = 1/2(x+3)

Explanation:

The coordinates in the question must be inverted (so -3 would become +3 and +7 would become -7)

We know that the line would be perpendicular when (x+3) is preceded by -2

You can double check this by going to a website that graphs equations and overlapping the lines.