Exercise 7 Page 556

We are given three vertices of △ JKL. To graph the triangle, let's plot the points and then connect them.

To find the images of the points reflected in the x-axis, we can use the coordinate rule. Two points reflected in the x-axis have opposite y-coordinates.

(a,b)	(a,- b)
J(2,-4)	J'(2, 4)
K(3,7)	K'(3, -7)
L(6,-1)	L'(6, 1)

Now we can graph the image of △ JKL after a reflection in the x-axis.