Foundations Bell work 12/5/2024

Front

What is the most appropriate domain for the function representing the depreciation of a cell phone's value?

Back

Natural numbers (x ≥ 0) because time in years since purchase cannot be negative.

Front

What does the slope of a function represent in a cost scenario?

Back

The slope represents the rate of change of cost per unit, indicating how much the total cost increases for each additional unit.

Front

What is the formula for linear depreciation?

Back

Front

What is the most appropriate domain for the mechanic's cost function?

Back

Front

How do you calculate the average rate of change of a function over an interval?

Back

Front

What does a steeper slope indicate in a cost function?

Back

A steeper slope indicates a higher cost per unit, meaning the total cost increases more rapidly.

Front

What is the significance of a flat fee in a cost function?

Back

A flat fee is a constant cost that does not change with the number of units, represented as the y-intercept in a linear function.

Front

What is the relationship between the slope and the cost per unit in a linear function?

Back

The slope of the function represents the cost per unit; a higher slope means a higher cost per unit.

Front

What does it mean if the average rate of change is 0.05 feet per minute?

Back

It means that for every minute, the height climbed increases by 0.05 feet on average.

Front

How do you interpret the y-intercept in a cost function?

Back

The y-intercept represents the initial cost before any units are added, such as a flat fee.