Writing Linear Functions

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Write an equation using the following table:

State Park

Mark recently moved to a new state. During the first month, he visited five state parks. Each month after, he visited two more. Complete the table then write an equation that represents this situation.

Equation: ______

The table below shows the price for the number of roses indicated. Number of 3 6 9 12 15 roses Price (Dollars) 9 18 27 36 45

Equation: ______

Find the cost of purchasing 30 roses.

Machine Salesperson

A machine sales person earns a base salary of $40,000 plus a commission of $300 for every machine he sells. Write an equation that shows the total amount of income the sales person earns, if he sells x machines in a year.

Equation: ______Writing Linear Functions

Lin is tracking the progress of her plant’s growth. Today the plant is 5 cm high. The plant grows 1.5 cm per day. Write a linear model that represents the height of the plant after d days.

Equation: ______

What will the height of the plant be after 20 days?

Mr. Thompson

Mr. Thompson is on a diet. He currently weighs 260 pounds. He loses 4 pounds per month. Write a linear model that represents Mr. Thompson’s weight after m months?

Equation: ______

After how many months will Mr. Thompson reach his goal weight of 220 pounds?

Julia has been measuring the length of her baby’s hair. The first time it was 6 cm long and after one month it was 1 cm longer. If the hair continues to grow at this rate, determine the function that represents the hair growth.

Equation: ______

When Jacob digs the Earth’s temperature rises as he digs deeper. He digs the Earth 5 meters down and the temperature of the material is 8C. For every 5 meters the temperature rises a constant 8 C. If the temperature continues to rise at this rate, determine the function that represents this relationship. Writing Linear Functions

Equation: ______Name: ______Date: ______Algebra I CC Exit Ticket

Paul opens a savings account with $350. He saves $150 per month. Assume that he does not withdraw money or make any additional deposits. Write a linear model that represents the total amount of money Paul deposits into his account after m months.

Equation: ______

After how many months will Paul have more than $2000?

Name: ______Date: ______Algebra I CC Exit Ticket

Paul opens a savings account with $350. He saves $150 per month. Assume that he does not withdraw money or make any additional deposits. Write a linear model that represents the total amount of money Paul deposits into his account after m months.

Equation: ______

After how many months will Paul have more than $2000? Writing Linear Functions

Name: ______Date: ______Algebra I CC HW #

1 Lucas read three books last month. The table shows the number of pages in each . book and the length of time it took to read the entire book.

Equation: ______

2 The population of Bay Village is 35,000 today. Every year the population of Bay . Village increases by 750 people. Write a linear model that represents the population of Bay Village x years from today.

Equation: ______

In approximately how many years will the population of Bay Village exceed 50,000 people?

3 Conner has $25,000 in his bank account. Every month he spends $1500. He does . not add money to the account. Write a linear model that shows how much money will be in the account after x months.

Equation: ______

How much money will Conner have in his account after 8 months?

4 A cell phone plan costs $30 per month for unlimited calling plus $0.15 per text . message. Write a linear model that represents the monthly cost of this cell phone plan if the user sends t text messages.

Equation: ______

If you send 200 text messages, how much would you pay according to this cell phone plan?

Review: Writing Linear Functions

5 Solve for the missing variable: 3(x + 1) – x = 18 .