- #1

mathdad

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For example, say the graph of y = x^4 - 4x^3 + 6x^2 - 4x + 2 is given. The graph of y crosses the y-axis at one point. It does not touch or cross the x-axis. In what way can the picture, the graph help us solve either of the following inequalities given below?

A. x^4 - 4x^3 + 6x^2 - 4x + 2 < 0

B. x^4 - 4x^3 + 6x^2 - 4x + 2 > 0

Remember, use the graph to solve. Do not solve algebraically. How is this done?