# How would you graph y=x+4 using slope and y-intercept?

##### 2 Answers

The slope is the coefficient in front of the x. In this case, the coefficient is one so the slope is 1. (When you graph the line, the line will rise by 1 for every time it goes to the right by 1.) Notice the +4 at the end of the equation. This means that the point where x=0, y will be equal to 4.

To graph this, start with x=0 and find x. Then, solve the equation using x=1, x=2, etc...

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

Here's what the graph should look like: graph{y=x+4 [-7.754, 4.736, -0.625, 5.62]}

#### Explanation:

The equation already in the slope-intercept form of a line,

In this equation,

Okay, so start with the y-intercept. If

Now there are two ways you could continue. Either: 1) make a table, pick x values and plug them into the equation and solve for y values, or 2) use the slope to draw the line.

Let's use the slope to draw the line.

Because the slope is 1, we know the