# How do you graph y=3-x?

Jul 30, 2017

See a solution process below:

#### Explanation:

Substitute some points for $x$ to obtain corresponding values for $y$. Such as:

$x = - 10$ Then $y = 3 - - 10 = 3 + 10 = 13$ gives: $\left(- 10 , 13\right)$

$x = - 5$ Then $y = 3 - - 5 = 3 + 5 = 8$ gives: $\left(- 5 , 8\right)$

$x = 0$ Then $y = 3 - 0 = 3$ gives: $\left(0 , 3\right)$

$x = 5$ Then $y = 3 - 5 = - 2$ gives: $\left(5 , - 2\right)$

$x = 10$ Then $y = 3 - 10 = - 7$ gives: $\left(10 , - 7\right)$

Now, plot the points and draw a line through the points:

graph{y = 3 - x [-20, 20, -10, 10]}