The domain of the function, y=2x+4 is {3, 5,6,8}. identify the range

Domain is the x-values

Range is the y-values

To identify the range, plug in the x-values they gave you into the equation to find its y-value

x = 3

y = 2x + 4       Plug in 3 for x

y = 2(3) + 4

y = 10

x = 5

y = 2x + 4    Plug in 5 for x

y = 2(5) + 4

y = 10 + 4

y = 14

x = 6

y = 2x + 4       Plug in 6 for x

y = 2(6) + 4

y = 16

x = 8

y = 2x + 4      Plug in 8 for x

y = 2(8) + 4

y = 20

The range is {10, 14, 16, 20}

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step-by-step explanation:

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set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x