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# What does ymx b mean?

Updated: 10/10/2023

Wiki User

16y ago

Answerr :]Okay, y equals mx plus b format is actually pretty simple. M means slope, which is the difference between two different points on the graph. B is just where the line crosses the y axis [the vertical line] on the graph, also called the y-intercept.

That was probably really confusing. So heres an example: Say you had the coordinates (1,1) and (2,2). If you connected these two points on a graph, the slope (m) would be 1/1, which reduces to 1. This is because from the first point, (1,1), you have to go up one and over one to the right to get to the next point, (2,2).

So that's how you find the slope. To find the y-intercept, you just look on the y-axis at where the line crosses it. In this example, the line happens to cross at 0. The y and x are simply just the coordinates. In the example (1,1) the first 1 is the x value and the second is the y value. g

So, if you were to plug in all these numbers, you would get y=1x+0 for this particular equation. That equation actually simplifies to y=x.

Okay, that was how to write an equation from a line. To draw a line from the equation, you would look at the last number which in my example is 0. This is your starting point. So, you would put your first dot at the point where the y and x axes meet. Then, you would "tap" out the slope. You would go up 1 box on the y axis, and to the right one box. So you would end up at the point (1,1). You would connect these points, and you have a line! Yayy!

Wiki User

12y ago

Wiki User

16y ago

Y=mx+b is in Slope Intercept Form. The ''m'' is the slope and the ''b'' is the Y- intercept. The ''x'' is the unknown.