What is the property of (4y+1)x 0=0

Need on this geometry question. explain how you did it.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

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