The value of the y-intercept for the graph of 4x - 5y=40 is?

We need to get our equation to this form:

y = mx + b

that is the line equation with m slope and b y-axis intercept. So lets modify our equation:

4x - 5y = 40

5y = 4x - 40

y = (4/5) x - 8

therefore the y-intercept is - 8