SOLUTION: Number of Credits / Fees 3 / 2000 6 / 2600 9 / 3200 12 / 3800 15 / 4400 (a) Wr

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 Click here to see ALL problems on Equations Question 204378: Number of Credits / Fees 3 / 2000 6 / 2600 9 / 3200 12 / 3800 15 / 4400 (a) Write an equation to calculate the fees F when the number of credits n is given? (b) Use this equation from part (a) to calculate the fee for 17 credits. Answer by stanbon(57214)   (Show Source): You can put this solution on YOUR website! Number of Credits / Fees 3 / 2000 6 / 2600 9 / 3200 12 / 3800 15 / 4400 (a) Write an equation to calculate the fees F when the number of credits n is given? You can see that for every increase of 3 credits the fees increases by 600. So the function is linear. ---------------------------------------- Use any two points to find the linear equation: slope = (2600-2000)/(6-3) = 600/3 = 200 Form y = mx + b 2000 = 200*3 + b b = 1400 Equation: fee(x) = 200x + 1400 where x is the number of credits --------------------------------------------------------------------- (b) Use this equation from part (a) to calculate the fee for 17 credits. fee(17) = 200*17+1400 = \$4800 =============================== Cheers, Stan H.