in the diagram below, DF = JL=a, FE = LK = b, and triangle DEF is a right triangle. use the drop- down menus to complete the proof that if the equation a ^2 + b^2 = c^2 is true of the side lengths in triangle JKL, the triangle JKL must be a right triangle.

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x