SOLUTION: At what value of x does 4x eventually exceed 7x2 + 8x + 2?

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Question 1037706: At what value of x does 4x eventually exceed 7x2 + 8x + 2?
Found 2 solutions by Alan3354, solver91311:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




You can prove this to yourself in a couple of ways:

You can find the vertex of the parabola that graphs the quadratic which is a minimum value of the function and then show that it is greater than .

You can show that has complex roots, proving that the graphs of and never intersect.

You can use a graphing calculator or graphing utility on your computer to show that never gets bigger than the quadratic.

John

My calculator said it, I believe it, that settles it