Tell whether each of the following is a function. 1. Which of the following could be a function? Select three that apply.
A {(2,5),(4, -3), (-2,1),(1,6)}
B {(1,3), (2, 1), (3,5), (1, -3)}
C {(-1, 1), (0,0), (1, 1), (-2,2)}
D {(0,0), (2,4), (2,-4), (3,9)}
E {(-2,8),(-3,-27),(-1,1),(3,27)}

A, C, E

Step-by-step explanation:

A function cannot have an x-value that produces more than y-value.  Examples would be {(2, 2), (2,3)} and {(1,0), (1,5)}.

A - This could be a function because it follows the above rule.

B - This can not be a function because it has an x-value that has two y-values.

C - This could be a function because it follows the rule.

D - This can not be a function because it has an x-value that has two y-values.

E - This could be a function because it follows the rule.

The question is looking for the difference divided by the longer ride. the longer ride is 6 1/4 miles, so now we need to find the difference. in order to do this we take the larger distance and subtract the smaller distance, so we would take 6.25 (i like decimals more)-5.5 and we get .75 or 3/4 of a mile. now we put .75 over 6.25 and simplify .125 or 1/8