The answer is C. hope this helps.
<span> (4,-2) (-3,2) (3,4) (1,1)
In reality, it is already a function, because for every x only one corresponding value of y.
We do not see any repeating values of x, so this set is already function. We do not have to remove anything.</span>
The answer for this multiple choice is D
1. Answer is 20
2(18-8)
Distribute to get 36-16
Answer is 20
2. Answer is 26
A=4 which means 4+22 which gets you 26
Answer: The expression simplified is this 2.25x-10.4