Question

find the x- and y-intercept of the line. 5x – 4y = 40 a. x-intercept is –4; y-intercept is 5. b. x-intercept is –10; y-intercept is 8. c. x-intercept is 8; y-intercept is –10. d. x-intercept is 5; y-intercept is –4.

Answer 1

5x - 4y = 40

x intercept is when y = 0

5x - 4*0 = 40

5x = 40

x = 40/5

x = 8             x intercept = 8

y intercept is when x = 0

5*0  - 4y = 40

-4y = 40

y = 40/-4

y = -10

y intercept = -10


x intercept = 8, y intercept = -10