Answer
$y = 1/4*x+15/8$
Work Step by Step
(.5,2) and (4.5,3) are given
$m = (3-2)/(4.5- .5)$
$m = 1/4$
$y = mx+b$
$3 = 1/4 * 4.5 + b$
$3 = 1.125 + b$
$3-1.125 = 1.125+b -1.125$
$1.875 = b$
$y = 1/4*x+15/8$
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