Yulian works at the zoo feeding the animals. He puts water in the elephant habitat at the beginning of the day. The table shows how much water, in gallons, rema
Mathematics
colbyestep12
Question
Yulian works at the zoo feeding the animals. He puts water in the elephant habitat at the beginning of the day. The table shows how much water, in gallons, remains at different times during the day. What is the equation that represents Yulian's situation in pointslope form? (HINT: Give all fractions as decimals)
1 Answer

1. User Answers Edufirst
Table
Hours 2 4 6 8
Water remining 43 36 29 22
If you calculate the change in water remaining / hours elacpse you ge a constant value:
[3649]/[42] = [2936]/[6429] = [2229] / [86] = 7/2 =  3.5
That is the slope.
The yintercept is y when x =0, this is the volume of water when time is 0.
You can calculate it by adding 7 to 43 = 43 + 7 = 50
Then, the equation is y = 3.5x + 50