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Mathematics
OpenStudy (anonymous):

Using graphing technology, approximate the solutions of 0.91x2 − 0.54x − 4.9 = 0. x ≈ −2.32 and x ≈ 2.56 x ≈ −2.14 and x ≈ 2.44 x ≈ −2.18 and x ≈ 2.53 x ≈ −2.04 and x ≈ 2.64

OpenStudy (anonymous):

What kind of graphing calculator do you have? I use a TI-83

OpenStudy (anonymous):

An expandable PDF plot from Mathematica 8 Home Edition is attached.

OpenStudy (anonymous):

From the problem of the text the student is supposed to eye ball a plot and estimate the roots. There is no doubt that WolframAlpha.com provides a lot of bang for the buck.

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