Question

The function y=2x+8 represents the cost y (in dollars) of a large pizza with x toppings, where x is equal to 0,1,2, or 3. Identify the independent and dependent variables, the domain, and the range

Answer 1

The function y=2x+8 represents the cost y (in dollars) of a large pizza with x toppings

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y=2x+8

Replacing

x=0

y= 2*0 +8

y=8

For x = 0 then y = 8

The pizza without toppings costs 8 dollars

x=1

y= 2*1 +8

y=10

For x = 1 then y = 10

The pizza with one topping costs 10 dollars

x=2

y= 2*2 +8

y=12

For x = 2 then y = 12

The pizza with two toppings costs 12 dollars

x=3

y= 2*3 +8

y=14

For x = 3 then y = 14

The pizza with three toppings costs 14 dollars

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The independent function is x and the dependent function of x or f (x) is y

The domain

he range