pls solve these with steps

Find dy and day da da2 at the given point without eliminating the parameter. T = 2 t2 + 9, y = $to + 5t, t = 3. dy dx da-2You are given the parametric equations z = 10 2, y =t 12. (a) List all of the points (:1:, y) where the tangent line is horizontal. In entering your answer, list the points starting with the smallest value of . If two or more points share the same value of z, list those points starting with the smallest value of y. If any blanks are unused, type an upper-case "N" in them. Point 1: (z,y) = ( . ) Point 2: (z,y) = ( 2 ) Point 3: (z,y) = (|| 2 ) (b) List all of the points (z,y) where the tangent line is vertical. In entering your answer, list the points starting with the smallest value of z. If two or more points share the same value of z, list those points starting with the smallest value of . If any blanks are unused, type an upper-case "N" in them. Point 1: (z,y) = ( : ) Point 2: (z,y) = ( , ) Point 3: (z,y) = ( 2 ) Find the slope-intercept form of the equation of the tangent to the curve given by r=e, y=(t1) at the point (z,y) = (1,1). y=|| Find the equations, in slope-intercept form, of the lines tangent to the parametric curve at the origin, given: z = t325 y = 252t For the negative value of t, the tangent line is y: Fort = 0, the tangent line is y: For the positive value of t , the tangent line is y: Which of the following integrals represents the length of the parametric curve x = t + cos(t), y = t - sin(t), 0