This week we learned about Solving a Quadratic Equation Graphically.I think I did very good and I learn very well.I learned how fine of vetex,domain and range. And we learned    Y=a(x–p)²+q

when -x² is open down and it is maximum

when x² is open up and it is minimum

V=(2,–1).      A=(4,–3)

now I use  Y=a(x-p)²+q.     -3=a(4-2)²-1

-3+1=a4.  -2=a4    a=-½.   Y=-½(x-2)-1