Algebra 1

$y = -1.8x + .3$
(1.5, -2.4) and (-.5, 1.2) $y = mx+b$ $m = (1.2 - -2.4)/(-.5-1.5)$ $m = 3.6 / -2 = -1.8$ $y = mx+b$ $1.2 = -1.8*(-.5) + b$ $1.2 = .9 + b$ $.3 = b$