4. Linear Regression: use desmos.com to find a line of best fit for the following table of data. Express in y=mx+b form. Round to nearest thousandth. (3 places past the decimal). Days since first viral outbreak 1 20 29 36 Number of confirmed cases of virus 2 45 57 71 5. Sketch a graph of the following on the answer sheet (using any graphing method): y = -x +4 5. Find the equation of a line that goes through points (4, -2) and (5,0). 5. Find the equation of a line that is parallel to y = 2x - 4 and goes through point (1,-3)