Question

There is 1 in. of water in a pool. The water level is increasing at 0.75 in./min . Which linear equation represents the total depth of the water, in inches, after x minutes?

y=0.75x
1+y=0.75x
y=0.75x+1
x=0.75y

Answer 1

y = 0.75x + 1 <=== ur equation

Answer 2

Let

x-------> the time in minutes

y------> the water level in inches

we know that

the slope of the linear equation is equal to

`m=0.75(in)/(min)`

The y-intercept is the value of y when the value of x is equal to zero

In this problem the y-intercept is equal to

`b=1\ in`

the equation of the line in the slope-intercept form is equal to

`y=mx+b`

substitute the values

`y=0.75x+1`

therefore

the answer is

`y=0.75x+1`