Question

Graph the following Y=x-4

Answer 1

Explanation:

1. When x is 0, y=-4, so plot the point (0,4) on the graph.

2. When y is 0, x=4, so plot the point (4,0) on the graph.

3. Draw a line between them and you're done.

Answer 2

Ok, so

We want to find the line:

`y=x-4`

First, remember that a line can be described with the following formula:

`y=mx+b`

Where "m" is its slope and b is its y-intercept.

Based in our equation, we got that m = 1 and b = - 4. So, we have a line with slope = 1, and y-intercept = -4.

To graph it, we have to take two points that lie on the line, and join them. We already know that the line has y-intercept at ( 0 , -4 ), so that's one point.

To find the other point, we could make y = 0 to find the x-intercept as follows:

`\begin{gathered} y=x-4 \\ x-4=0 \\ x=4 \end{gathered}`

Now, we have the x-intercept at (4 , 0) so that's other point.

We join both points:

So that's the graph for y = x-4.