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41 votes
41 votes
Find f(-3) for the equation below f(x)=-2x+3

User Suraj Chopade
by
2.1k points

1 Answer

21 votes
21 votes

In this problem, we are applying function notation. When we see a function written as


f(x),

we read it as "f of x" or "f as a function of x."

We will take the value of x and substitute it into the quation.

The function rule states


f(x)=-2x+3

Since we are given f(-3), we will substitute each x-value (inside parentheses), and simplify:


f(-3)=-2(-3)+3=6+3=9

Therefore, f(-3) = 9.

User Mahmudul Hasan
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2.6k points