A function is for every input, there is 1 output
aka
x never repeats with a different y
A. x doesn't repeat, it's a function
B. -8 repeats with 34 and 40, this is not a funciton (this is the answer0
C. x doesn't repeat, it's a function
D. x doesn't repeat, it's a function
answer is B
Hey there!

By using this formula, we plug it in.
Your correct answer would be
. . .
≈

Hope this helps.
~Jurgen
Divide.
9 / 12 = $0.75 per bunch of bananas's
Multiply.
8 * 0.75 = $6 for 8 bunches.
Hope This Helped! Good Luck!
The perimeter of the square is (28 + 12x) units.
Answer:
The answer is H. II and III only.
Step-by-step explanation:
A simple way to tell if a relation is a function is by taking a look at the X value, which is on the left. If the X value repeats again (ex: (0,1) (0,2) or (5,3 (5,7)) it is not a function. However, the Y value is allowed to repeat.