Question

How do you find the slope given y= -4x +9?

Answer 1

`"slope "=-4`

Explanation:

`"the equation of a line in "color(blue)"slope-intercept form"` is.

`•color(white)(x)y=mx+b`

`"where m is the slope and b the y-intercept"`

`y=-4x+9" is in this form"`

`"with slope m "=-4`

Answer 2

`m=-4`.

Explanation:

We write it in the form of `y=mx+c` where `m` is our slope.
Since, `y=-4x+9` is already in the form `y=mx+c`, we just compare these two.
We get, `m=-4`.

Hope this helps :)