Question

Number 17.

If the y-intercept is 5, what is the value of B of the graph of 2x + By = 15?


A. 0


B. 7.5


C. 1


D. -3


E. 3

Answer 1

2x + By = 15

We solve for y to put the equationj in the y = mx + b form in which b is the y-intercept.

By = -2x + 15

y = -2/Bx + 15/B

The y-intercept is 15/B, and we are told the y-intercept is 5.

15/B = 5

15 = 5B

B = 3

Answer: E. 3