Question 26 (4.5 points) A painting contractor is trying to estimate the cost function for painting jobs. He has the following information: House Cost (Y) vau AWN- 1 2 3 4 5 Square Feet (X) 2,600 4,200 2.800 2.850 4,050 2.700 2,375 2.450 2.200 3,700 $3.300 3.700 3.100 3.150 4.700 3.250 2.800 2.800 2.700 4.100 7 8 9 10 Using the high-low method, what is the variable cost per square foot? Show all you calculations. Make sure to label your numbers (for example don't write 2+4 instead write DM 2 + DL 4)