SOLUTION: Hi, Can you please help with applications of quadratic equations . (1) {{{ f(x) = x^2 + 7x - 8 }}} . Does parabula open up/down? . Find vertex . Find axis of symmetry . (

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Hi, Can you please help with applications of quadratic equations . (1) {{{ f(x) = x^2 + 7x - 8 }}} . Does parabula open up/down? . Find vertex . Find axis of symmetry . (      Log On


   

Question 160331: Hi, Can you please help with applications of quadratic equations
.
(1) +f%28x%29+=+x%5E2+%2B+7x+-+8+
.
Does parabula open up/down?
.
Find vertex
.
Find axis of symmetry
.
(2) +f%28x%29+=+x%5E2-5x%2B6+
.
Does parabula open up/down?
.
Find vertex
.
Find axis of symmetry
.
Thanks ahead of time, Levi
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 + 7x - 8 (red curve)
f(x) = x^2-5x+6 (green curve)
+graph%28+300%2C+200%2C+-16%2C+5%2C+-20%2C+10%2C+x%5E2+%2B7x+-8%2C+x%5E2+-5x+%2B6%29+ (graph 300x200 pixels, x from -16 to 5, y from -20 to 10, of TWO functions x^2 +7x -8 and x^2 -5x +6).
RED CURVE: symmetry x=-3.5, axis=(-3.5,-20.25).
GREEN CURVE: symmetry x=2.5, axis=(2.5,-.25)