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Can somebody help me?

Can somebody help me?-example-1

1 Answer

6 votes

Answer:

See explanation

Explanation:

The given function is
f(x)=-(x+2)^2-1

You could observe that:
a=-1 when you compare to
f(x)=a(x+h)^2+k.

This should tell you that the graph should open downwards.

Let us substitute
x=3, to get:
f(2)=-(3+2)^2-1=-5^2-1=-26

Also when x=4,
f(4)=-(4+2)^2-1=-6^2-1=-36-1=-37

All the results are negative so the graph should appear below the x-axis

This shows that AJ made a mistake in the graph.

User Soichi Hayashi
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