the area of a trapezoid can be calculated with the formula A=a+b/2 x h where a and b are the lengths of the bases and h is the hight what is the area of a trapezoid when a=2 b=6 and h=9

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36