Question

determine which is the graph of the given fuction

Answer 1

Only the first is a correct function graph. The other are multi-valued, and thus invalid.

Answer 2

first one is not correct

Answer 3

third one is not even a function

Answer 4

second one is correct. two lines, one for x < 5 and one for x > 5. the first line for x < 5 has slope 3 and y - intercept 2,
the second one for x > 5 has slope -3

answer is second graph