Which of the following sets represents a function?
{(3, 5), (-1, 7), (3, 9)}
{(1, 2), (3, 2), (5, 7)}
{(1, 2), (1, 4), (1, 6)}

A function is a special relationship where each input has a single output.

A. The set {(3, 5), (-1, 7), (3, 9)} doesn't represent a function, because input x=3 has two outputs  and

C. The set {(1, 2), (1, 4), (1, 6)} doesn't represent a function, because input x=1 has three outputs  and

B. The set {(1, 2), (3, 2), (5, 7)} represents a function, because each input has a single output.

correct choice is B.

Step-by-step explanation:

astronomers is your final answer! : )

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)