1)the number of tickets sold each day for an upcoming perfomance of Hendel's Messiah is given by N(x)=-0.4x^2+8x+10, where x is the number of days since the concert was announced.when will daily ticket sales peak and how many tickets will be sold that day?
2)find the x intercepts and the y interceptes of f(x)=-x^2+4x+32
3)find and label the vertex and line of symmetry and graph. f(x)=2(x-3)^2
4)find the vertex, line of symmetry, minimum or maximum value of the quadratic equation and graph. f(x)=-2x^2+2x+3