For which set of lines is it reasonable to state that the two lines are almost perpendicular to each other?

a. y = 2.1x 3, y = 2.1x 5

b. y = 0.9x 5, y = - 1.26x 8

c. y = 5x 1.25, y = - 5x 1.25

d. y = 3/4x 0.28, y = 4/3x 0.29

Question

Mathematics

Shiloh Brennan

10 November, 09:28

For which set of lines is it reasonable to state that the two lines are almost perpendicular to each other?

a. y = 2.1x 3, y = 2.1x 5

b. y = 0.9x 5, y = - 1.26x 8

c. y = 5x 1.25, y = - 5x 1.25

d. y = 3/4x 0.28, y = 4/3x 0.29

+5

Answers (1)

Know the Answer?

Lucian Lam · Answer 1

When you multiply their slopes and it gets to - 1

y=mx+b

m=slope

A. 2.1*2.1=4.41

B. 0.9*-1.26=-1.134

C. 5*-5=-25

D. 3/4 times 3/4=1

B is answer

For which set of lines is it reasonable to state that the two lines are almost perpendicular to each other?a. y = 2.1x 3, y = 2.1x 5b. y = 0.9x 5, y = - 1.26x 8c. y = 5x 1.25, y = - 5x 1.25d. y = 3/4x 0.28, y = 4/3x 0.29

For which set of lines is it reasonable to state that the two lines are almost perpendicular to each other?

a. y = 2.1x 3, y = 2.1x 5

b. y = 0.9x 5, y = - 1.26x 8

c. y = 5x 1.25, y = - 5x 1.25

d. y = 3/4x 0.28, y = 4/3x 0.29