y=3x-4 graph?

Answer 1

To graph y=3x-4
This is as the formula y=mx+b
mx= the slope
b= the y intercept
So since your equation is y=3x-4
y=-4
slope or (m)=3x which is 3/1 remember rise/run

To graph plot -4 on the y intercept which is below than begins 3/1.

Answer 2

If you're using a graphing calculator, just type that in.

If you're doing by hand, you have to analyze the equation.

Most lines have the formula y= mx + b, where m is the slope and b is the y-intercept.

y = 3x - 4
The slope is 3, and the y-intercept is -4.

Go to your coordinate plane and mark the point (0, -4). It should be on the y-axis.

The slope is 3. Since it is positive, the line will be going upwards from the bottom left corner to the top right corner.

Remember that slope = rise / run.
3 = 3 / 1, 3 is the rise and 1 is the run.

That means that from any point on your graph, to get to the other one you go up 3 and to the right 1.

You already have one point, (0 , -4). From that point, move your pencil up 3 and to the right 1. Mark that point. Then connect the two with a ruler and extend the line. Don't forget to put arrow marks on the ends.

Here's a picture of the graph at the end:
http://i31.photobucket.com/albums/c392/teekshi33/graph.jpg

You're done! Hope that helps!