Pentagon pgrst is shown on the grid a student reflected pentagon pirate across the y axis to create hexagon pqrst

Answer 1

To reflect pentagon PGRST across the y-axis, we take each point and change its x-coordinate to its opposite sign.

Let's label the coordinates of pentagon PGRST as follows:
P(p1, p2), G(g1, g2), R(r1, r2), S(s1, s2), T(t1, t2)

The reflected hexagon PQRST will have the following coordinates:
P'(-p1, p2), G'(-g1, g2), R'(-r1, r2), S'(-s1, s2), T'(-t1, t2)

Therefore, the reflected hexagon PQRST across the y-axis is:
P'QRST