SOLUTION: suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 12 hours of burning. a candle had a height of

Algebra ->  Linear-equations -> SOLUTION: suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 12 hours of burning. a candle had a height of       Log On


   

Question 1155389: suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 12 hours of burning. a candle had a height of 15.8 centimeters. after 29 hours of burning, its heights is 5.6 centimeters. what is the height of the candle after 27 hours?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Given points of a line, (12, 15.8) and (29, 5.6);
Find unknown point (27, y).

y-5.6=%28%285.6-15.8%29%2F%2829-12%29%29%28x-29%29-----------starting in point-slope form


y=%28%285.6-15.8%29%2F%2829-12%29%29%28x-29%29%2B5.6------------
From here, continue to simplify, and then let x equal to 27.
Evaluate y.