Answer:
f(x) = (-11/7)x - 4
Step-by-step explanation:
f(-7)=7 means if you put in a -7, then you get out a 7. This is the point (-7,7) or x=-7 and y=7.
Also, f(0)=-4 is the point (0,-4) which is x=0 and y=-4
From two points you can find slope. Subtract y's put it on top; subtract x's and put on the bottom.
(y-y)/(x-x) =
(7 - -4)/(-7 - 0)
= 11/-7
= -11/7
The point (0,-4) is the y-intercept
So point-slope form of the equation using
y = mx + b
y = (-11/7) x + -4
Function notation gives us:
f(x) = (-11/7)x - 4
