SOLUTION: Please help me solve the quadratic equation. I Have to show whether concave up or concave down? Thanks! y=(-X^2+4X+5)

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Please help me solve the quadratic equation. I Have to show whether concave up or concave down? Thanks! y=(-X^2+4X+5)      Log On


   

Question 137936: Please help me solve the quadratic equation. I Have to show whether concave up or concave down? Thanks!
y=(-X^2+4X+5)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
y=(-X^2+4X+5)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x%5E2+%2B4x+%2B5%29+
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -x^2 +4x +5).