d. x = 0 or x = -6
Let's say we can write a function given by the form:
[tex]y=f(x)= x(x+6)[/tex]
In this case, we want to know all the y-values that makes y to be zero. In other words:
[tex]x(x+6)=0[/tex]
So:
[tex]x \ \ \ \ \ 0 \ \ \ \ \ -6 \\ y \ \ \ \ \ 0 \ \ \ \ \ \ \ \ 0[/tex]
The only x-values that meets this requirements are:
[tex]x=0 \\ x=-6[/tex]
Quadratic function: https://brainly.com/question/12164750
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