Answer:
[tex]\begin{gathered} a)\text{ 0} \\ b)\text{ 7} \\ c)\text{ 10} \end{gathered}[/tex]
Explanation:
Here, we want to evaluate the piece-wise function based on the given x values
We use the individual f(x)-values based on the range in which the x-values fall
a) f(-1)
-1 is a value less than zero, thus, we are going to use the first equation
Thus, we have it that:
[tex]4(-1)\text{ + 4 = -4 + 4 = 0}[/tex]
b) f(0)
we simply susbtitute x=0 into the second equation
Thus, we have it that:
3(0) + 7 = 0 + 7 = 7
c) f(1)
we simply substitute 1 into the second equation. Thus, we have it that:
3(1) + 7 = 3 + 7 = 10
