$$g(x) = ax^2+24$$
For the function $$g$$ defined above, $$a$$ is a constant and $$g(4)=8$$. What is the value of $$g(−4)$$?

Question

Uniteasy Admin · Accepted Answer

$$\because g( 4)=8$$
Substituting into the given function $$g(x)= ax^2+24$$ establishes the following equation
$$8 =  4^2a+24$$
Solve the equation
$$1=2a+3$$
$$a=-1$$
$$g(x)$$ is determined as
$$g(x) = -x^2+24$$
Substituting $$x=-4 $$ into the function gives
$$g(-4)=-(-4)^2+24=8$$
A is correct choice

Multiple Choice Question (MCQ)

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