Write the quadratic function in standard form. Identify vertex, axis of symmetry and sketch graph.
standard form: f(x)= -x^2+16x-5 = -(x^2+16x+64-64)-5 This is where it goes wrong
= -(x^2+16x+64)-64 -5
Here is where I get confused...
= -(x^2+16x+64) -69 (?)
multiply thru to rid the - sign out front
However according to the markings on my test it should be
Which would mean the Vertex is (8,59)
graph...yadda yadda..... is it really 59? Just wondering where exactly I screwed up here. lol
to the opposite sign. What you should have is