How to solve y=(x-3)(x-11) find vertex coordinate and vertex form !

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

Use the zero product property to find the solutions to the equation (x+2)(x+3)=12

21 type the correct answer in each box. if necessary, round your answers to the nearest hundredth the vertices of abc are a(2,8), b(16, 2), and c(6,2). the perimeter of abc is units, and its area is square units