The college student who is looking for a data plan for her cell phone found a third option, which also offers a 2 gigabyte monthly allowance for data.
The monthly cost of this option can be represented by function C, defined by: C(x) = 30x + 5,
where is the gigabytes of data used over the monthly allowance.
1. Find C(0.7) and explain what it means in this situation.
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C(0.7) = 26 30(0.7) + 5
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2. Her budget is still $50 a month. To find out how many gigabytes of data she could use if she chose
this plan, she writes C(2) = 50 and solves for x. What value of x makes this equation true?
Show your reasoning.