The Monthly Cost of Driving a Car Depends on the Number

question 159

Short Answer

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 cost $C$ as a function of the distance driven $d$ assuming that a linear relationship gives a suitable model.

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Definitions:

Presbyopia

A condition associated with aging in which the eyes gradually lose the ability to see things clearly up close due to the hardening of the lens inside the eye.

Myopia

A vision condition in which people can see close objects clearly, but objects farther away appear blurred, also known as nearsightedness.

Hyperopia

A visual condition in which distant objects are seen more clearly than those that are near, often referred to as farsightedness.

Old Eyes

A colloquial term referring to age-related changes in vision, typically presbyopia or decreased visual acuity.