Question

Find the equation of a line through (-9, 2) perpendicular to y=3x-12

1 point
y=-1/3x-1
y=3x-1
y=1/3x+4
y=-3x-1

Answer 1

9514 1404 393

Answer:

y = -1/3x -1

Explanation:

The perpendicular line will have a slope that is the negative reciprocal of the slope of the given line. The given line's slope is the coefficient of x: 3. So, the perpendicular line's slope will be ...

m = -1/3

Only one answer choice has that value as the coefficient of x:

y = -1/3x -1