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What is the value of [tex]$g(-4)$[/tex]?

[tex]
g(x)=\left\{\begin{array}{ll}
\sqrt[3]{x+5}, & x \leq -4 \\
-x^2 + 11, & x \ \textgreater \ -4
\end{array}\right.
[/tex]

A. -1

B. 1

C. 27

D. -5


Sagot :

To find the value of [tex]\( g(-4) \)[/tex] given the piecewise function:
[tex]\[ g(x)=\begin{cases} \sqrt[3]{x+5}, & x \leq -4 \\ -x^2+11, & x > -4 \end{cases} \][/tex]

we need to determine which condition [tex]\( x = -4 \)[/tex] falls into. Since [tex]\( -4 \leq -4 \)[/tex] is true, we will use the first piece of the piecewise function:
[tex]\[ g(x)= \sqrt[3]{x+5} \][/tex]

Next, we substitute [tex]\( x = -4 \)[/tex] into the first piece of the function:
[tex]\[ g(-4) = \sqrt[3]{-4 + 5} \][/tex]

Simplifying the expression inside the cube root:
[tex]\[ -4 + 5 = 1 \][/tex]

Therefore:
[tex]\[ g(-4) = \sqrt[3]{1} \][/tex]

Since the cube root of 1 is 1:
[tex]\[ g(-4) = 1 \][/tex]

Hence, the correct answer is:
[tex]\[ \boxed{1} \][/tex]