help, give answer and explain please

Question

Confetti Extravaganza sells confetti by the ounce for all your confetti needs!

They charge $2.00 per ounce on orders that weigh fewer than 5 ounces, and $1.50 per ounce on orders of 5 ounces or more.

C ( x ) is a function describing the cost of x ounces of confetti.

What is the domain of C ? Domain =

What is the range of C ? Range =

C ( 4 ) = dollars

C ( 10 ) = dollars

Write a formula for the first piece of this function (purchases of less than 5 ounces).

When x < 5 , C ( x ) =

Write a formula for the second piece of this function (purchases of 5 or more ournces).

When x ≥ 5 , C ( x ) =

Answer 1

The domain would be all integers greater or equal to zero. If you allow parts of an ounce, then all real numbers greater or equal to zero. Can't have negative numbers.

The range would be all real numbers greater or equal to zero.

C(4) = 8 dollars

C(10) = 15 dollars

When x< 5, C(x) = 2x

When x≥5, C(x) = 1.5x