3 Select the correct answer.
Which of these mappings is a function?
X
y
Х
х
у
ох
5
2.
5
2
5
2
6
AX
SN 00
4
6
4.
6
4
6
4
7
6
7
x6
7
6
7
6
8
8
8
8
8
8
8
w.
X.
Y.
N
O A. W
OB. X
O C. Y
OD. Z

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

sites:

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.