Function Tables Graphs and Equations

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m = 50 + w

• w = 50m

• w = 50 + m

• m = 50 - w

Which function is best represented by this graph?

The graph shows the relationship between the cost of some pecans and the weight of the pecans in pounds.

Which function best represents the relationship shown in the graph?

Melissa is saving $25 that she earned for washing her mom's car. She earns $100 every week for doing chores, which she also saves. Which function can be used to find t, the amount of money Melissa will have saved at the end of n, weeks of doing chores?

Which function is best represented by this graph?

Mr. Leonard is renting a car for one day. The table below shows the total amount he will be charged for the car based on the number of miles he drives. Which equation best represents c, the number of dollars Mr. Leonard should be charged for driving m miles?

Frankie bought a new computer. He made an initial payment of $50 to the store, and he will pay $30 each month until the computer is paid off. Which equation represents the relationship between m, the number of monthly payments Frankie has made, and t, the total amount that Frankie has paid the store?

Which equation can be used to describe the relationship between x and y shown in the graph?