Finding Constant

Front

What is the initial value in a situation where Tim bought a new phone for $125 and pays $50 per month?

Back

The initial value is $125.

Front

What does a constant rate of change represent in a real-world scenario?

Back

A constant rate of change represents a consistent amount of increase or decrease over time.

Front

What is the rate of change in Tim's phone payment situation?

Back

The rate of change is $50 per month.

Front

What is the constant rate of change if Tim pays $41 per month?

Back

The constant rate of change is $41 per month.

Front

What makes a graph proportional?

Back

A graph is proportional if it is a straight line that goes through the origin.

Front

If $100 is earned for each hour worked, what is the unit rate?

Back

The unit rate is $100 per hour.

Front

How do you calculate the total cost of Tim's phone after 6 months?

Back

Total cost = Initial value + (Monthly payment x Number of months) = $125 + ($50 x 6) = $425.

Front

What does it mean if a graph is a straight line?

Back

A straight line indicates a constant rate of change.

Front

If a person earns $500 for every 8 hours worked, what is their hourly wage?

Back

Hourly wage = Total earnings / Total hours = $500 / 8 = $62.50 per hour.

Front

What is the formula for finding the total cost in a situation with a constant rate?

Back

Total cost = Initial value + (Rate of change x Time).