# SOLUTION: How do I find the demand equation for p=\$20 sells x=42 and p=\$10 sells x=52, in the form of p=mx+b using two points in the form (x,p)?

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 Click here to see ALL problems on Probability-and-statistics Question 489931: How do I find the demand equation for p=\$20 sells x=42 and p=\$10 sells x=52, in the form of p=mx+b using two points in the form (x,p)?Answer by stanbon(57347)   (Show Source): You can put this solution on YOUR website!How do I find the demand equation for p=\$20 sells x=42 and p=\$10 sells x=52, in the form of p=mx+b using two points in the form (x,p)? --- Two points: (42,20) and (52,10) --- slope = (20-10)/(42-52) = 10/-10 = -1 ---- Form: p = mx + b 20 = -1(42) + b b = 72 ------------------ Equation: p(x) = -x+72 ================== Cheers, Stan H.