Question 901746
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Hi
{{{m =(y[1] - y[2])/(x[1] - x[2] )}}}
(4, 2)
(2,-1) m = 3/2
***Using point-slope form, {{{y - y[1] = m(x - x[1])}}}P(4,2)
y -2 = (3/2)(x-4)
Slope-Intecept
 y = (3/2)x -4    0r 3x-2y = 8 Standard Form***
f(0)= (3/2)0 - 4 = -4