MHS Hornet Olympics Week 2

Identify the graphed linear equation.

• $y=5x+2$

• $y=5x-2$

• $y=-5x+2$

• $y=-5x-2$

Which equation is graphed here?

• $3y-x=3$

• $x+3y=3$

• $3x+y=3$

• $3x-y=3$

Identify the graphed linear equation.

• $y=\frac{2}{5}x+5$

• $y=\frac{1}{5}x+5$

• $y=5x+5$

• $y=-\frac{1}{5}x+5$

The cost in dollars, C, of renting a carpet cleaner is given by the linear equation  $C=20+25x$ , where x is the number of days.

Use this model to find the number of days it can be used for $170.

• 4

• 5

• 6

• 7

Dwight spent $250 to rent a jet ski for 6 hours. The rental company charges a base rate of $150 for the first two hours, and then an hourly rate each additional hour, h. The equation  $4h+150=250$   models Dwight's cost of renting the jet ski.  How much does each additional hour of rental cost?

• $20

• $25

• $30

• $40