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Determining a possible equation for a curve when you are given two points.

Linear equations: y = mx + b

  1. If one of the points is on the y axis with coordinates (0, y)
    1. b is equal to the given y value
    2. find m by using its definition: M = (Y2- Y1)/(X2-X1)
    3. now write the equation using the values of m and b.

Example:

Example: put an exponential equation through the points (0, 5) and (3, 40)