Question

Determine which relation is a function.
k so give me a minute to get the graphs up, this one is more confusing than the others

Answer 1

C?

Answer 2

@neer2890

Answer 3

why c?

Answer 4

well, I figured because the 2's are in the circle, and each one of those is a relation?

Answer 5

now that I look at it, that doesn't even make sense ugh sorry

Answer 6

ok. so for a graph to be a function use vertical line test.
if plotted a vertical line at any point on the graph,
if it cuts the given curve of function at one point then it is a function otherwise not.

Answer 7

A or D then, right?

Answer 8

for e.g.,
so you can see that vertical line cuts the graph only at one point .
so, it is a function.