Question

The graph shows how the length of Julia's essay depends on the number of hours she spends writing. Write an equation that relates the total pages written (y) to the number of hours spent writing (x). Answer format: y=kx k must be written in the format 0.10 *

Answer 1

Step-by-step explanation: Would the answer be y=0.80x because the x=10 and y=8??

Answer 2

`y=0.80x`

Explanation:

Let x represent number of hours spent writing and y represent total pages written.

We have been given a graph that represents how the length of Julia's essay depends on the number of hours she spends writing.

First of all, we will find slope of the line using point (0,0) and (5,4).

`m=(y_2-y_1)/(x_2-x_1)`

`m=(4-0)/(5-0)`

`m=(4)/(5)`

`m=0.80`

Now, we will substitute the slope in the slope-intercept form of equation
`y=mx+b`, where,

m = Slope,

b = The y-intercept.

We can see that y-intercept is 0.

Therefore, our required equation would be
`y=0.80x`.