How to do you graph y=-x +4y=x+4 by plotting points?

1 Answer
Mar 5, 2016

graph{-x+4 [-16.02, 16.02, -8.01, 8.01]}

Explanation:

In your equation (y=-x+4)(y=x+4), -xx, or -1x1x, is your slope and +4+4 is your yy-intercept.

To graph this, start by plotting your yy-intercept on your yy-axis (remember, your yy-intercept is +4+4).

Then, since your slope is negative, your line will be going down (high-left to low-right). From the dot you just made on your yy-axis, go to the right once (one box), and down once (one box), since your slope is -1x1x, and the formula for slope is "rise"/"run"riserun. Continue this pattern, and extend your line.

Your slope should look similar to the graph above :)