Exploring Constant Rate of Change in 7th Grade Math

What is a constant rate of change?

• A rate that describes how one quantity changes in relation to another in a linear relationship

• A rate that changes randomly

• A rate that only applies to non-linear relationships

• A rate that varies over time

In the example of the computer programmer, what is the constant rate of change?

• $1000 per line of code

• $20 per line of code

• $100 per line of code

• $50 per line of code

How do you find the constant rate of change using a table?

• By adding the changes in x-values and y-values

• By looking at the changes in the x-values only

• By looking at the changes in the y-values only

• By dividing the change in y-values by the change in x-values

What is the constant rate of change in dollars per car for the booster club example?

• $10 per car

• $5 per car

• $8 per car

• $40 per car

In the plane travel example, what is the approximate constant rate of change in miles per minute?

• 11.3 miles per minute

• 9.7 miles per minute

• 8.5 miles per minute

• 10.2 miles per minute

How do you find the constant rate of change using a graph?

• By finding the area under the line

• By looking at the slope of the line

• By counting the number of points on the line

• By measuring the length of the line

What does the point (0,0) represent on a graph showing distance traveled over time?

• Traveling zero miles in zero hours

• Traveling zero miles in one hour

• Traveling one mile in zero hours

• Traveling one mile in one hour

In the city driving example, what is the constant rate of change in miles per hour?

• 35 miles per hour

• 20 miles per hour

• 25 miles per hour

• 30 miles per hour

Which store charges more per hour to rent a bicycle?

• Pedals Rentals

• Super Cycles

• Neither store charges for rentals

• Both charge the same

What is the constant rate of change for Super Cycles in the bicycle rental example?

• $12 per hour

• $10 per hour

• $8 per hour

• $6 per hour