I need help finding y=mx+b

Mathematics

1 answer:

harina [27]2 years ago

8 0

Step-by-step explanation:

Hi! I have learned some tips and tricks for finding the variables in y=mx+b

b is the y intercept, commonly found on the graph. If not you can substitute points in for the slope, the x, and the y value. This way B is the only variable left.

M is the slope. This can be calculated by looking at a graph and counting how many "up and over" it is. look up yt videos. theres tons.

You can also find the slope between two points by taking (y2-y1) DIVIDED BY (x2-x1)

Hope this helps!!

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x+y=21.

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Solve the system of equations:

$\left\{\begin{array}{l}x+y=21\\4x+2y=54.\end{array}\right.$