Writing Linear Equations Worksheet With Answers Page 9

Using Linear Equations

• A machine salesperson 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

salesperson earns, if he sells x machines in a year.

y = 300x + 40,000

• How much would the salesperson make if 20 machines

were sold?

y =

300(20)

+ 40,000 y = $46,000

• How many machines would need to be sold to earn

$100,000 for the year?

(100,000)

= 300x + 40,000

x = 200 machines

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