Answer:
C
Step-by-step explanation:
It can't be A because there isn't an answer for 55
It can't be B because 8 students answered 70 or 75 % and there are 19 total students. 8/19 is not 50%
It can't be D because only one student answered 100%
And there are eight students who answered more than 80%
I think this is correct, the picture is a little blurry.
Answer:
Choice A.
Step-by-step explanation:
Apply the vertical line test.
If a vertical line intersects 2 or more points on the graph, the relation is not a function.
If all vertical lines intersect at most 1 point on the graph, the relation is a function.
Any vertical line in Choice A. intersects 1 single point. Choice A. is a function.
There are vertical lines that would intersect 2 points of the graph in Choices B., C., and D., so they are not functions.
