Question

6. Kori is on a road trip to Colorado, and uses the equation y = 60x+ 200 to determine the

number of miles she has driven after x hours. If she drives for a maximum of 12
hours, what is the domain of this situation?

Answer 1

Answer: 0 < x ≥ 12

Explanation:

The domain is the set of x-values for which the equation is true.

• Since the maximum time is 12 hours, then the domain is less than or equal to 12.
• Since time can't be negative or 0, then the minimum is greater than 0.

∴ domain would be 0 < x ≥ 12