The quadratic function below models the monthly profit of a community orchestra in thousands of dollars, from 2000 to 2005 , where x=0 represents the year 2000 . From the graph above, state the exact coordinates of the vertex (use brackets but put no spaces in your answer): A/ From the graph above, state the exact coordinates of the y-intercept (use brackets but put no spaces in your answer): Use the y-intercept and the vertex to find the equation of the quadratic function in standard form. Then, expand to find the equation in general form, f(x)=ax2+bx+c. Write the integer coefficients of this function in the spaces below. a= A/ b= A c= Now, determine exactly when the profit has reached zero, in years from 2000. This is the positive x-intercept. Round your answer to the nearest tenth and express as a decimal. x= A