Exploring Constant Rate of Change through Tables and Graphs

What is the first step in finding the unit rate from a graph?

• Calculate the area under the curve

• Determine the x-axis label

• Find the y-intercept

• Identify the slope of the line

If a programmer charges $1000 for 50 lines of code, what is the unit rate per line of code?

• $10 per line

• $20 per line

• $40 per line

• $30 per line

How much does the cost increase for every 50 lines of code?

• $500

• $1000

• $1500

• $2000

In the car wash example, how much money is earned for washing 10 cars?

• $160

• $120

• $80

• $40

What is the constant rate of change for the car wash fundraiser?

• $5 per car

• $7 per car

• $8 per car

• $6 per car

What is the independent variable in the road trip example?

• Distance

• Speed

• Fuel

• Time

If Mr. Crosby drove 120 miles in 2 hours, what was his average speed?

• 60 miles per hour

• 30 miles per hour

• 50 miles per hour

• 40 miles per hour

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

• Add the x-values and y-values

• Multiply the x-values by the y-values

• Subtract the x-values from the y-values

• Find the difference in y-values and divide by the difference in x-values

What does a constant rate of change indicate on a graph?

• A curved line

• A horizontal line

• A vertical line

• A straight line

If the rate of change is 60 miles per hour, how far will Mr. Crosby travel in 3 hours?

• 300 miles

• 120 miles

• 180 miles

• 240 miles