What is the range of the function f
(
x
)
=
2
x
+
4
f
⁢
(
x
)
=
2
x
+
4
when the domain is {-2, 0, 3}?

A.
{0, 4, 10}

B.
{4.25, 5, 12}

C.
{4.25, 4, 12}

D.
All real numbers

a. -0.3 > -0.33

20

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18