What is the linear function equation that best fits the data set?
the data set is (1.5,14)(1,12)(2,9)(1.5,8)(3,6)(4.5 ,4)(4,3)(4.5,0)
yˆ=−43x+9
yˆ=−43x+10
yˆ=3x+15
yˆ=−3x+15

To form an equation for a straight line, we need the value of gradient and the y-intercept

The formula to find gradient is 

∑



∑




≈-3

where m is the gradient

to find c (y-intercept)
≈15

Hence the equation of the straight line is 

You need to divide 210 square inches by 35 inches and that’s going to give you 6 inches and that’s the length of the hypothenuse of the right triangle i hope that this you : )