Question

What is the equation of the line that is perpendicular to f(x) and passes through the point (4, –6)

4x + 3y = –2
3x + 4y = –12
4x – 3y = 34
3x – 4y = 36

Answer 1

What is the first equation?

Remember perpendicular lines have reciprocal slopes.

So if we have 1/2 we flip to fraction and sign becoming -2.

You then input the point to find the y-intercept.

Answer 2

Answer: the answer is A. (4x + 3y = -2)