7. For the equation: y = 43 x2 + 20x 3. Find gutting the chain rule a. (4) b. Find the slope of the tangent line to the curve at the point (5,5) b. (3) c. Find the equation of the tangent line to the curve at the point (5,5). 0. (3) #9172 25 8. Find the domain of the following: f (x) = 4x 12