Question

What is the slope and y-intercept of this line?

y = –3x + 9



slope: 9, y-intercept: –3


slope: 3, y-intercept: –9


slope: –3, y-intercept: 9


slope: 1, y-intercept: –3

Answer 1

`\huge\boxed{Slope=-3,\;Y\;intercept=9.}`

___________________________________________________________

`\boxed{Explanation}`

y=mx+b.

m is always where the slope is located.

b is always where the y intercept is located.

Therefore, since -3 is located at m that is the slope and 9 is located at b so that is the y intercept.

Answer 2

C

Explanation:

y=mx+b

b= y-intercept

m=slope

m=-3

b=9