Question

Select values for the function f(x) are shown on the table at the right find the value of f(3)

Answer 1

f(3) = -2

Explanation:

Comparing the expression f(x) to the expression f(3), you see that 3 has been substituted for x. This means the table value of interest is the one corresponding to x=3.

Table lookup

The line for x=3 is the last line of the table. It tells you ...

f(3) = -2