Question

ABC is a right triangle with vertices B (9, 4) and C (3, 9).

What are the coordinates of vertex A?

Enter your answers in the boxes.

Answer 1

(3,4) is the answer

Answer 2

A (3, 4)

Explanation:

A has to be positioned horizontally along B. This means its x coordinate is the same as x-coordinate of B which is 4

A also has to be positioned vertically below C. This means its y coordinate is the same as the y-coordinate of C. So y-coordinate of A is 3

So coordinates of A are (3, 4)