Question 12, 3.1.3 = Homework: L07-08 HW: The Derivative Part 1 of 2 a. For the function and point below, find f (a). b. Determine an equation of the line tangent to the graph of fat (a,f(a)) for the given value of a. f ( x ) = - 2 a = a. f(a) =Suppose the speed of a car approaching a stop sign is given by v(t) = (t-18) ,, for 0 Sts 18, where t is measured in seconds and v(t) is measured in meters per second. a. Find v'(6). b. Interpret the physical meaning of this quantity. a. v'(6) = m/s per second m/s per meter m/s s/m Help me solve this View an example Get more help -Question Homework: L07-08 HW: The Derivative Part a. For the following function, find f' (a). b. Determine an equation of the line tangent to the graph of f at (a,f(a)) for the given value of a. 5 f(x) = = x+2' a=5 a. f (a) = (Simplify your answer.)