Question

The movie club is having a new member sale, so Mindy signs up. The equation -0.4x + 0.05y - 1.25 = 0 relates y, the total cost, and x, the number of months. What is the y-intercept of the line represented by the equation?

Answer 1

(0, 25)

Explanation:

We need to convert function to slope-intrcept form y=mx+b, where:

-0.4x + 0.05y - 1.25 = 0 {multiply both sides by 20}

-8x + y - 25 = 0 {add (8x+25) to both sides}

y = 8x + 25 ⇒ b = 25

Therefore y-intercept of the line is (0, 25)

Answer 2

Y intercept : ( 0 , 25 )

Explanation: