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

Mar 24, 2018

#### Explanation:

The y-intercept is 4 so you graph the point (0,4).

When $x = 0$,

$y = - \left(0\right) + 4$

$y = 4$

Next, you know the slope is $- x$, which is also $\frac{- 1}{1} x$, so you

would go down 1 unit and right 1 unit on the graph. This method is

using $\frac{r i s e}{r u n}$. Then plot the points using the slope.

$\textcolor{b l u e}{O r}$ you can find the points algebraically,

When $x = 1$,

$y = - \left(1\right) + 4$

$y = 3$

When $x = 2$,

$y = - \left(2\right) + 4$

$y = 2$

$\text{and so on.}$

graph{-x+4 [-10, 10, -5, 5]}