The triangle jkl shown on the coordinate grid below is reflected once to map onto triangle j'k'l': triangle jkl is drawn on a 4 quadrant coordinate grid with vertices j is at 8, 1. k is at 5, 7. l is at 3, 4. if vertex l' is at (−3, 4), what are the coordinates of vertex j'?

The vertex J' is at (-8,1).

Step-by-step explanation:

If is given that the triangle JKL reflected once to map onto triangle J'K'L'.

The vertices of the triangle JKL are J(8,1), K(5,7) and L(3,4). The vertex L'(-3,4).

It is in the form of

Since the y-coordinate remains same and the sign of x coordinate is changed. It shows the reflection across the y axis.

The vertices of image are,

Therefore the vertex J' is at (-8,1).