Posted by **logan** on Tuesday, February 19, 2008 at 9:01pm.

your local rollerblade rink will rent you blades for $14.00 for 3 hours or $29.00 for 8 hours. Asume the price increase is constant depending on the number of hours the blades are rented.

Find the expression

- algebra -
**Damon**, Tuesday, February 19, 2008 at 9:41pm
x = hours

y = price

two points (3,14) and (8,29)

y = m x + b

m = (29-14)/(8-3) = 15/5 = 5

y = 5 x + b

14 = 5(3) + b

b = -1

so

y = 5 x - 1

- algebra -
**Damon**, Tuesday, February 19, 2008 at 9:58pm
whoops, sorry

m = (29-14)/(8-3) = 15/5 = 3

y = 3 x + b

14 = 3(3) + b

b = 5

so

y = 3 x +5

## Answer This Question

## Related Questions

- algebra 1 - your local rollerblade rink will rent you blades for $14.00 for 3 ...
- algebra - a student worked w hours on tuesday x hours on wednesday y hours on ...
- algebra - you rollerblade at an average speed of 8 miles per hour. the number of...
- algebra - you rollerblade at an average speed of 8 miles per hour. the number of...
- Math - The formula N = 10(4') gives N, the number of bacteria present in a ...
- physics - A helicopter has two blades (see figure), each of which has a mass of ...
- Physics - A helicopter has two blades (see figure), each of which has a mass of ...
- Math - Tricia spent $12 to rent ice skates. She rented them for 4 hours. Which ...
- physics please help me - A ceiling fan is turned on and a net torque of 1.6 N·m...
- math - the least common multiple of 3, 6,9 i say 18 Sheila practiced hours ...

More Related Questions