How to Write an Algebra Function f(x)=

What is the fixed monthly charge for the cell phone plan?

• $0.50

• $25.00

• $25.50

• $1.00

What is the additional charge per gigabyte of data used in the cell phone plan?

• $25.00

• $0.50

• $1.00

• $2.50

If a user consumes 3 gigabytes of data in a month, what would be the total monthly bill for the cell phone plan?

• $25.50

• $26.00

• $26.50

• $27.00

Which function correctly models the total monthly cost (y) for a cell phone plan that charges a fixed $25 per month and an additional $0.50 per gigabyte (x) of data used?

• y = 0.50x - 25

• y = 25x + 0.50

• y = 25 + 0.50x

• y = 25 / 0.50x