Question

Help me, please!!!

Lesson 3-8. Write an equation for the line perpendicular to the given line through the given point.

Answer 1

• y = -3x + 14

Explanation:

Given line:

• y = 1/3x - 2/5

Perpendicular lines have negative-reciprocal slopes.

We will have a line:

• y = -3x + b

Use the coordinates of the given point to find the value of b:

• -1 = -3(5) + b
• -1 = - 15 + b
• b = 14

So the line is:

• y = -3x + 14