Question

Graph ΔRST with vertices R(6, 6), S(3, –6), and T(0, 3) and its image after a reflection over the y-axis.

Answer 1

under a reflection in the y-axis

a point (x, y ) → (- x, y ), thus

R(6, 6 ) → R' (- 6, 6 )

S(3, - 6 ) → S'(- 3, - 6 )

T(0, 3 ) → T'(0, 3 )

Plot the sets of points and graph them

Answer 2

Answer: The graph is attached below.

Step-by-step explanation: Given that the co-ordinates of the vertices of ΔRST are R(6, 6), S(3, –6), and T(0, 3).

We are given to graph ΔRST and its image after a reflection over the Y-axis.

After reflection across Y-axis, the co-ordinates of the vertices of ΔRST will follow the following transformation :

(x, y) ⇒ (-x, y), because the sign before the x-coordinates of the vertices will get reversed.

Therefore, the co-ordinates of the vertices of the image of ΔRST will be

R'(-6, 6), S'(-3, -6) and T'(0, 3).

The graphs of both the triangles, ΔRST and its image after reflection R'S'T' is drawn in the attached figure.

We see that the vertices T and T' coincide with each other.

Thus, the graph is shown below.