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September 22, 2014

September 22, 2014

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

Find the expression

- algebra -
**Damon**, Tuesday, February 19, 2008 at 9:41pmx = 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 -
**logan**, Tuesday, February 19, 2008 at 9:45pmhey damon..thank you for your answer but would 15/5=3...so where would the 3 go...thank you

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

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

y = 3 x + b

14 = 3(3) + b

b = 5

so

y = 3 x +5

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