The Monthly Cost of Driving a Car Depends on the Number

question 6

Multiple Choice

The monthly cost of driving a car depends on the number of miles driven. Julia found that in October it cost her $\$ 200$ to drive $300 \mathrm { mi }$ and in July it cost her $\$ 350$ to drive $600 \mathrm { mi }$ . Express the monthly $\operatorname { cost } C$ as a function of the distance driven $d$ assuming that a linear relationship gives a suitable model.
Select the correct answer.

• A) \(C = - 50 d + 0.5\)
• B) \(C = 50 d - 0.5\)
• C) \(C = 0.5 d + 50\)
• D) \(C = 2 d + 50\)
• E) \(C = 0.5 d - 50\)

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Definitions:

Hypothesis Testing

A statistical method used to make inferences or decisions about population parameters based on sample data, often involving testing an assumption or claim.

Research Hypothesis

A statement positing a relationship between variables or indicating differences among groups, which the research is designed to test.

Confirmation

The process of verifying that a theory, hypothesis, or finding is accurate and reliable through additional observation or experimentation.

Probability

The likelihood or chance of an event occurring, often expressed as a number between 0 and 1.