Which fraction has a value that's equal to 7⁄8?

a. 15⁄8 b. 49⁄64 c. 56⁄8 d. 21⁄24

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.