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

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

$m=\frac{500-0}{2-0}$

$m=250$

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