SOLUTION: Show the solution and vertex of f(x)=8x^2+x-5

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Question 1143377: Show the solution and vertex of f(x)=8x^2+x-5
Found 3 solutions by greenestamps, Alan3354, josgarithmetic:
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


(1) What do you mean by the "solution" of a quadratic function?

(2) Put the equation in vertex form,

a%28x-h%29%5E2%2Bk

The vertex will be (h,k)

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Show the solution and vertex of f(x)=8x^2+x-5
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Makes no sense.

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
You can use Completing The Square to help find the vertex.

f%28x%29=8%28x%5E2%2Bx%2F8-5%2F8%29
8%28x%5E2%2Bx%2F8%2B%281%2F16%29%5E2-%281%2F16%29%5E2-5%2F8%29
8%28x%2B1%2F16%29%5E2-8%2F16%5E2-5
.
.
highlight_green%288%28x%2B1%2F16%29%5E2-161%2F32%29

vertex ( -1/16, -161/32 )