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 = (2914)/(83) = 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 = (2914)/(83) = 15/5 = 3
y = 3 x + b
14 = 3(3) + b
b = 5
so
y = 3 x +5
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