Question

A candle is 10 in. tall after burning for 2 hours. After 3 hours, it is 8.5 in. tall. How tall will the candle be after 6 hours?

22 in.
2 in.
1.5 in.
4 in.

Answer 1

4 inches.

Answer 2

What a tricky question. I like how they try to stump people here but in my eyes its a great disappointment

Answer 3

Oops, the points were supposed to be (2, 10) and (3, 8.5)

Answer 4

8.5 - 10/3 - 2
-1.5/1
-1.5

This is your slope.

Answer 5

y = -1.5x + 13
This equation goes through both points (2, 10) and (3, 8.5)

Answer 6

Plug in 6 into your equation and solve for y:

y = -1.5x + 13
y = -1.5(6) + 13
y = -9 + 13
y = 4

So we have (6, 4) which means the candle will be 4 inches tall.

Answer 7

I support this answer^