ax² +2, x ≤2. Find the value of parameters a,b at which function f(x) = {ax+4b/x, 2

Use a calculator to evaluate fx=8x at x=2.

During a nine-hour snowstorm, it snows at a rate of 1 inch per hour for the first 2 hours, at a rate of 2 inches per hour for the next 6 hours, and at a rate of 0.5 inch per hour for the final hour. Write and graph a piecewise-defined function that gives the depth of the snow during the snowstorm. How many inches of snow accumulated from the storm?