Answer:
Explanation:
Whenever writing the equation of a line, start by writing
:
Next locate where the y-intercept is. This can be found by locating the value of y when x is equal to 0. (In this case y was equal to -1). You include this value after finding the slope of the line.
You can find the slope of the line by either looking at the graph and seeing the change in y over the change in x which is 2/1 which is just 2. Or you can select two coordinate points and use slope formula to find the slope.
For example (0,-1) and (1,1) are two points on the graph.
The equation to find slope is :
aka the change in y over the change in x.
Plug in the values and simplify :
⇒
Which is 2.
Write the final form in
That's it!