Respuesta :

y=0

y=2x+7

x= 7/2 =3.5

- 2×3.5+7 =0

0=- 2×3.5+7

y. x

The y intercept is always the constant.
In this case, it will be 7
You know this because the only time the line will intersect at the y axis is when x is 0
So
y=2(0)+7
y=7