1. [-/2 Points] DETAILS LARCALC11 10.3.005. Find dy/dx. x = th, y = 2 - 8t dy = dx Need Help? Read It Watch It 2. [-/2 Points] DETAILS LARCALC11 10.3.009. Find dy/dx and day/dx2, and find the slope and concavity (if possible) at the given value of the parameter. (If an answer does not exist, enter DNE.) Parametric Equations Point x = 4t, y = 7t - 8 t = 7 dy dx d'y dx2 slope concavity : ---Select--- Need Help? Read It Watch It3. [-/2 Points] DETAILS LARCALC11 10.3.016. Find dy/dx and day/dx2, and find the slope and concavity (if possible) at the given value of the parameter. (If an answer does not exist, enter DNE.) Parametric Equations Point x = vt, y= vt-3 t = 7 dy dx dzy dx 2 slope concavity : ---Select--- V Need Help? Read It 4. [-/2 Points] DETAILS LARCALC11 10.3.021. Find an equation of the tangent line to the curve at each given point. x = t2 - 4, y = tz - 2t at (0, 0) at (-3, -1) at (-3, 3) Need Help? Read It5. [-I2 Points] DETAILS LARCALC11 10.3.036. Find all points (if any) of horizontal and vertical tangency to the curve. Use a graphing utility to confirm your results. (If an answer does not exist, enter DNE.) x=t2t+9, y:t33t Horizontal tangents (X, Y) = ( ) smaller X-value (x, y) = ( ) larger X-value Vertical tangent w > Need Help? 6. [I2 Points] DETAILS LARCALC11 10.3.053. E Find the arc length of the curve on the given interval. (Round your answer to three decimal places.) Parametric Equations Interval x=\\/', y=2t6 03:51 E Need Help? 7. [-I2 Points] DETAILS LARCALC11 10.3.051. Find the arc length of the curve on the given interval. (Round your answer to two decimal places.) Parametric Equations Interval t tsint Ostsl X=e 2 E Need Help? cost, y= e 8. [-I2 Points] DETAILS LARCALC11 10.3.033. Find all points (if any) of horizontal and vertical tangency to the curve. Use a graphing utility to confirm your results. (If an answer does not exist, enter DNE.) X=9t, y=l.'2 Horizontal tangent we Vertical tangent we