Question

Need help w/ a Question. (Question Inside)

Answer 1

@ganeshie8

Answer 2

I think it'll be 12 inches after burning for 8 hours am I correct? I just need to know how to write the equation

Answer 3

That's right! you have very good intuition!

Answer 4

after 3 hours, it is 17 inch tall
after 5 hours, it is 15 inch tall

in 2 hours, it has reduced by 2 inch.
that means it is reducing 1 inch each hour, so slope = -1

Answer 5

you know slope = -1
and you know a point, (3, 17)

can you write the equation of line in point-slope form ?

Answer 6

I believe you need two points to get it, thats only one

Answer 7

calculating slope requires two points, but we have figured out the slope already

Answer 8

maybe, lets try this
can yo guess the height of candle at t=0 ? (before it has started burning)

Answer 9

20 in

Answer 10

so the equation would be
`h = 20 - 1t`

which is same as
`h = 20 - t`

Answer 11

that equation tells us that the candle starts at 20 inch height, and it reduces by 1 inch each hour

Answer 12

ok thanks! appreciate it