SOLUTION: A new candle is 8 inches tall and burns at a rate of 2 inches per hour. a. Write an equation that models the height h after t hours. b. Sketch the graph of the equation.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A new candle is 8 inches tall and burns at a rate of 2 inches per hour. a. Write an equation that models the height h after t hours. b. Sketch the graph of the equation.       Log On


   

Question 674300: A new candle is 8 inches tall and burns at a rate of 2 inches per hour.
a.
Write an equation that models the height h after t hours.
b.
Sketch the graph of the equation.
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
y = -2x + 8
y is the height of the candle in inches.
x is the amount of time it burns in hours.
in 4 hours the candle should burn down to nothing.
domain of the function is x = 0 to 4.
range of the function is y = f(x) = 0 to 8
graph of the function looks like this:
graph%28600%2C600%2C-1%2C5%2C-1%2C9%2C-2x%2B8%29