Question

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 15 hours of burning, a candle has a height of 19 centimeters. After 33 hours of burning, its height is 8.2 centimeters. What is the height of the candle after 26 hours?

Answer 1

h = 26.4

Answer 2

is that the answer? If so would you mind telling me how you got it?

Answer 3

Isn't it somewhat impossible?

Answer 4

The height at 15th hr is already 19, and the question asks for the 26th hr which simply means that the answer should be lesser than 19.

Answer 5

ok...:y = mx + c

y = height, x = time, m = gradient, c = constant

height = -0.3time + c

23.7 = -0.3x11 + c

c = 27

h = -0.3x2 + 27

Answer 6

Thank you I will try that and use the method for my next problem!

Answer 7

your very welcome *^.^*

Answer 8

:D

Answer 9

:D