Question

The graph shows the relationship between the amount of water that flows from a fountain and time. Write an equation to represent the amount of water that flows after x minutes. (Need solution! Answer: y = 250x)

Answer 1

y=250x

Explanation:

2 mins=500

Divide it by 2:

1 min= 250

So, 250 gal per minute or y=250x.

Answer 2

Since, we are given

straight line

so, we can find equation of straight line

Let's assume

y is the amount of water that inflows

x is the time in minutes

We can select any two points

(0,0) and (2,500)

Firstly , we will find slope

`m=(500-0)/(2-0)`

`m=250`

now, we can use point slope form of line

`y-y_1=m(x-x_1)`

we can plug values

and we get

`y-0=250(x-0)`

`y=250x`..............Answer