Jesset C.

asked • 07/19/21

Can someone please help me with this?

I’m helping my younger brother with his homework, and I just want to make sure I’m helping him correctly.

The x-axis is a line of symmetry for a triangle. The coordinates of two of its vertices are (–4, –4) and (–9, 0). What are the coordinates of the third vertex?

[A] (–4, 9)

[B] (4, –4)

[C] (9, 0)

[D] (–4, 4)

I got [D] and he got [A], are either of us correct?

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