Question

PLEASE PLEASE PLEASE HELP FAST!!!!!!!!!! WILL REPORT ANY TROLLS

ABC is an isosceles right triangle in which AB has a slope of -1 and mABC = 90°. ABC is dilated by a scale factor of 1.8 with the origin as the center of dilation, resulting in the image A'B'C'. What is the slope of B'C'?

A. - 1

B. 0

C. 1

D. 1.5

E. 2

Answer 1

i think its 1.5 im not sure tho 1.5 sounds the best

Explanation:

Answer 2

• C. 1

Explanation:

Given

• ΔABC with
• Slope of AB = -1
• ∠ABC = 90°

This means that AB⊥BC

The dilation doesn't affect the shape of the triangle, therefore:

• A'B' has slope of -1
• B'C' ⊥ A'B'

Perpendicular lines have negative reciprocal slopes. In other words the product of the slopes is - 1.

Let the slope of B'C' is x, then:

• -1*x = -1
• x = 1

Correct option is C