I'm a little confused f(x) = |x|^2 - 4|x| I know that gives the equations of: x^2 - 4x and x^2 + 4x and you can differentiate them, but which equation corresponds to which part of the graph? Thanks in advance
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Originally Posted by freswood I'm a little confused f(x) = |x|^2 - 4|x| I know that gives the equations of: x^2 - 4x and x^2 + 4x and you can differentiate them, but which equation corresponds to which part of the graph? Thanks in advance When : . When : . As a reality check you can always try plugging in numbers and seeing what you get. RonL
Hello, freswood! Find the derivtive of: This is equivalent to the piecewise function: Differentiate them for both cases. You can check your results against the graph. Code: | * | * | * | * - - * - - - - - * - - - - - * - - -4 * * | * * 4 * * | * * |
| * | * | * | * - - * - - - - - * - - - - - * - - -4 * * | * * 4 * * | * * |
Originally Posted by Soroban Differentiate them for both cases. differention of |x|=|x|/x where x is not equal to 0
Thanks! What confused me is that for something like |x^2 - 4x| one applies to y>0 and the other to y < 0. as in x < 0 U x > 4 and 0<x<4 Can anyone explain the difference between the two?
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