Question

If f(x) = −4x − 1, find f(−2)

Answer 1

Substitute the value of x with -2 to get the answer.

Answer 2

sub in -2 into x in the equation

Answer 3

replace every x of f(x) with -2

Answer 4

f(x) = -4x - 1
Therefore,

\(\Large \color{MidnightBlue}{\Rightarrow -4(-2) - 1 }\)
This can be used.

Answer 5

f(-2) = -4(-2) - 1
= 8 - 1
= 7

Answer 6

x is like a thing that is used in general