Which representation has a constant of variation of -2.5

Average acceleration: i have no idea how to do this.

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.

Explain how you can show five less than a number using an algebraic expression