Question

Find the slope and the y-intercept of the line.
y=9x-3

Answer 1

Basically, every linear function can be expressed as:

`y=ax + b`, where
`a` is the slope.

So, the slope is 9 in your case.

To find y-intercept of the line you have to set
`x=0` because line intercepts y-axis when
`x` is equal to zero:

`y=9*(0) - 3`

From here we can say that
`b` is the y-interception.
So, y-interception is -3 in your case.

Answer 2

slope = 9

Y- intercept = - 3