Question

5

Which of the following lines is perpendicular to the line y = -3x +
2 and passes through the point (-2, 8)?
A y=-3x + 26
B y = 5x+15
Cy= 3x + 39
D5y = 3x + 1

Answer 1

Explanation:

Two perpendicular line means one's slope is negative inverse to the another one.

Therefore, the slope of y = -3x + 2 is -3.

Assume its perpendicular line is 3y = x +k, this line pass through (-2,8)

24 = (-2) + k => k = 26

3y = x+26