Luis graphs trapezoid PQRS , in which sides PQ and RS are parallel and 8 inches apart. He then reflects the figure across the y -axis to create trapezoid P′Q′R′S′ . How far apart are the sides P′Q′ and R′S′ ?(1 point)
The two sides are
inches apart.
When a figure is reflected across the y-axis, the x-coordinates of the points are negated.
Since the sides PQ and RS are parallel and 8 inches apart, their x-coordinates are the same. Therefore, the x-coordinates of P'Q' and R'S' will also be the same.
Therefore, the sides P'Q' and R'S' are also 8 inches apart.