Question

On the graph of the equation 2x + 5y = −30, what is the value of the y-intercept? A.15 B.−15 C.6 D.−6

Answer 1

answer is d

Explanation:

make x=0

and y=-6 and the equation will be true

2(0)+5(-6)=-30 is true

Answer 2

Answer: option D.

Explanation:

The equation of the line is slope-intercept form is:

`y=mx+b`

Where m is the slope and b is the y-intercept.

Then, you can solve for y to see the y-intercept, as following:

`5y=-2x-30\\y=-(2)/(5)x-6`

Therefore, the b is:

b=-6

The answer is the option D.