Let f be the function whose graph and formula are given below. -J.... . ....... .. ........ f (I ) = 0.2x + 4.5, if x 2.5 Use at least 4 decimal places if you need to round, and remember to round "in". (a). Use the formula for f(x) to algebraically compute the smallest acceptable value for a that guarantees f(a) will be within 0.2 of 5. I min 1.5 (b). Use the formula for f(a) to algebraically compute the largest possible value for a that guarantees f(x) will be within 0.2 of 5. T maz 2.7857 (c). Use the formula for f(x) to algebraically compute the largest input tolerance, o, that guarantees f(a) will be within 0.2 of 5. (Enter dne if no such o exists.)