The equation y equals -5.131 x squared + 31.821 x - 3 .33 3 approximate the number people standing in line to catch a commuter train x hours after 5 a. m. what is the best estimate for the number of people in line at 9 a. m.

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.