The curves of the quadratic and cubic functions are f(x)=2x-x^2and g(x)= ax^3 +bx^2+cx+d. where a,b,c,d ER, intersect at 2 pointsP and Q. These points are also two points of tangency for the twotangent lines drawn from point A(2,9) upon the parobala. The graphof the cubic function has a y-intercept at (0,-1) and an xintercept at (-4,0). What is the value of the coefficient \"b\" inthe equation of the given cubic function.
