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2.) A curve "C" is defined by the parametric equation ac = 02 - 20 y = 03 - 30 a.) Find an equation of the tangent to the curve "C". When 0 = -2 in slope intercept form. b.) Find the order pair(s), (x,y), on the curve "C" where the tangent is horizontal. c.) Find the order pair(s), (x,y), on the curve "C" where the tangent is vertical. d.) Determine the values of 0 where the curve "C" is concave upwards. e.) Determine the values of 0 where the curve "C" is concave downwards