How long would it take to travel 315 mi at the rate of 45 mi/h ?

a. 7h
b.240 h
c.360 h
d.14,175 h

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:

2nd one in the first row is correct