Power Fit y=4xM ■ Some situations involve y=AxM,where Mis a known constant. In these cases there is only one parameter 4 to be determined. Thm.4.2 (Power Fit).Suppose that {(xk,y)=1 are N points, where the abscissas are distinct.The coefficient 4 of the least- squares power curve y=4xM is given by the following normal equation: 4区/会 Power Fit y=AxM ◼ Some situations involve y=AxM , where M is a known constant. In these cases there is only one parameter A to be determined. ◼ Thm. 4.2 (Power Fit). Suppose that {(𝑥𝑘, 𝑦𝑘)}𝑘=1 𝑁 are N points, where the abscissas are distinct. The coefficient A of the least￾squares power curve y=AxM is given by the following normal equation: 2 1 1 . N N M M k k k k k A x y x = =     =          