math someone please help

write in standard form (1,4) (5,7)

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  1. m = y/x = 7-4/5-1 = 3/4
    y = mx + b
    Plug in 1 for x and 4 for y and solve for b.
    =============
    another way.
    Substitute x and y values for the equation y = mx + b.
    4=m(1) + b
    7=m(5) + b
    You have two equations and two unknowns. Solve for m and b, then put in y = mx + b form.

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