Ok, time for the super easy guide to y=mx+b. This one should be a breeze.Before we start, a little background just in case you’ve forgot.

1,They’re called linear because they represent straight lines on the Cartesian plane(x,y).

2. m = slope, or the incline of the line.

3. b = where the line hits the y plane.

Ok thats all you need to know. Onto the problem!

Go ahead and draw a small (x,y) plane.

Step 1: The first thing we’ll play with will be b. Start from the origin and go up 4 (0,4). Put a dot. If this was -4 we’d go down 4 instead of up.

Step 2: Now we’ll use 2x (mx) to find the slope. With this number, we’ll find out how far we’ll have to go starting from y. Put the 2 over 1 to make this easier. The numerator will determine how far up/down we go. The denominator will determine how far left/right we go.

Step 3: Depending on whether the numerator/denominator is positive or negative will determine what direction we go. Take a look at the black box , since 2 and 1 are positive, we’ll go up 2 and right 1. Remember to start from y, not the origin!

There we go. Easy Peezy Lemon Squeezy!
Linear Equations continued coming up tommorow. As always, feel free to comment and check out the archives on the side.