Answer:
• f(-7)=-40
,• f(1)=-8
Explanation:
Given the function f(x) defined below:
[tex]f(x)=4x-12[/tex](a)The value of f at x=-7
When x=-7
Substitute -7 for x:
[tex]\begin{gathered} f(-7)=4(-7)-12 \\ =-28-12 \\ =-40 \end{gathered}[/tex]The value of f at x=-7 is -40.
(b)The value of f when x=1
When x=1
Substitute 1 for x:
[tex]\begin{gathered} f(1)=4(1)-12 \\ =4-12 \\ =-8 \end{gathered}[/tex]The value of f at x=1 is -8.
