Question

1. what are the coordinates of z? (-r, 0) (0, r) (0, -t) (t, 0)

Explanation:

Step1: Recall rhombus properties

A rhombus is symmetric about both the x - axis and y - axis. The point $(0,t)$ is on the positive y - axis.

Step2: Determine coordinates of Z

Since Z is the reflection of $(0,t)$ across the x - axis, the x - coordinate remains 0 and the y - coordinate changes sign. So the coordinates of Z are $(0, - t)$.

Answer:

$(0, - t)$