The track and field coach records Ian's 400-meter race times during several practices. How much greater was the percent of change from practice 1 to practice 2 than from practice 2 to practice 3? Round to the nearest tenth.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

srry idk

step-by-step explanation:

i think is g(1)=-1.

hope that i can