Question

Find f(-5) if f(x) = |x + 1|.

Answer 1

Hello!

To find f(-5), if f(x) = |x + 1|, substitute the value of x, which is -5, into the given equation.

f(-5) = |-5 + 1|

f(-5) = |-4|

f(-5) = 4

Notice that you apply the absolute value symbols after simplifying the terms inside the symbols.

Therefore, when f(x) = |x + 1|, and you need to find f(-5), f(x) = 4.

Answer 2

To evaluate the function f(x) = |x + 1|, when x = -5, we have to substitute all values of x in the function with -5. Doing this, we get:

f(-5) = |-5 + 1|=

=|-4|

Since absolute value is always positive, the answer is 4.