Question

I really need help with writing the equation, I’m very so confused…

Answer 1

`y=x+3`

Explanation:

The graph shows a linear relationship, therefore, it will have the following form of the equation:

`y=mx+b`

Where m is the slope and b is the y-intercept.

We calculate the slope as follows:

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

Given:

(0, 3) and (4, 7)

Replacing:

`m=(7-3)/(4-0)=(4)/(4)=1`

The y-intercept is the point (0, 3) which means that b is equal to 3.

The equation would then be:

`y=x+3`