how do you find slope and y intercept if the formulas y=mx+b i need help i have a quiz and could you test me on one and put the answer in the comment box
the ? below finding slope and y intercept
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Find the slope and y-intercepts of the following equations...
Please place your answers in a comment and I will evaluate.
Slope is the change in y divided by the change in x so it would be y2-y1 over x2-x1 given by the two coordinates that you have.
So if your points are (1,2) and (3,4) it would be (4-2)/(3-1) = 2/2 = 1
So your slope would be 1
To find Y, you plug in one of the points that you were given then you isolate B.
So if the point was (1,2) with m=2 you would solve:
y = mx + b
2 = 2(1) + b
2 = 2 + b
0 = b