Sketch f(x) = 5x2 - 20 labelling any intercepts.

Explanation:

Given the function

As we know that the x-intercept(s) can be obtained by setting the value y=0

so

switching sides

Add 20 to both sides

Dividing both sides by 5

so the x-intercepts will be: (2, 0), (-2, 0)

we also know that the y-intercept(s) can obtained by setting the value x=0

so

so the y-intercept will be: (-20, 0)

From the attached figure, all the intercepts are labeled.

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