Identify the parent function that can be used to graph the function f(x)= -9(x+5)2

The parent function that can be used to graph is:

Step-by-step explanation:

We are asked to find the parent function that can be used to graph the function f(x) which is given as:

We know that from the given options the parent function that best represents the relationship or that can be used to graph the function f(x) is:

since the function is just a transformation of the parent function the transformation that is applied is a combination of a dilation with a scale factor '-9' and a translation '-5' units to the left and a reflection along 'x' axis.

Hence, the parent function is:

the answer is 8/21

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