Question

If f(x) = −4x − 1, find f(−2).

−9

−7

−10

7

Answer 1

f(x) = −4x − 1---just plug in
f(-2) = −4(-2) − 1

Answer 2

f(-2) = 7
f(-9) = 35
f(-7) = 27
f(-10) = 39
f(7) = -29

Answer 3

how do you do that ?

Answer 4

If you are doing f(-2), you just plug -2 into every x in the equation.
Ex: f(-2) = -4(-2) - 1
f(-2) = 8 - 1
f(-2) = 7