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It depends on what information you have. If you have the slope (m) and at least one ordered pair (x, y), then all you do is plug in the numbers and solve for b. For example:

y=mx+b

ordered pair: (3, 2)

slope: 1/2 or 0.5

2 = 0.5(3)+b

2 = 1.5 + b

0.5 = b

If you have two ordered pairs, simply calculate the slope of the line first and then plug in the numbers as above.

To calculate slope, use:

m = (y2-y1)/(x2-x1)

More answers

y=mx+b

b is how far up or down your place of origin is..

m is how much you go up/down for each point

x is how much left/right you go

Q: How can you graph a line using ymx b?

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If you mean: y = mx+b then it is the formula for a straight line equation whereas m is the slope and b is the y intercept

It rotates the graph about the point (0, b). The greater the value of m, the more steeply it rises to the right.

You're talking about y=mx+b which is the standard line equation.

If you mean: y = mx+b then the slope of the line is m and the y intercept is b

In the equation Y=mx+b, which is what I believe you mean, 'b' is the y intercept of the graph. In other words, if the equation is plotted in standard Cartesian coordinates, the straight line crosses the y-axis at the height b above the x axis.

m

If you mean: y = mx+b then m is the slope and b is the y intercept.

Because in a vertical line the slope is undefined, there is no "y" answer or "b" value and the line is in the form of x = some number such as x = 3 which is a vertical line.

If you mean y = mx+b then the slope is m and the y intercept is b

y=m*x+b is called the slope-intercept form because it describes a line where m is the slope and b is the point on the y-axis that the line intercepts.

Start with b. To do this, plot the point (0, b). "Begin with B and Move with M!"

If you mean: y = mx+b then m is the slope and b is the y intercept