Maths 2 - Solving for X and Derivative Tests

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Questions and Answers

What is the solution for x in the first equation provided?

  • x = -3 (correct)
  • x = 1
  • x = 0
  • x = 3

What is the value of the second derivative of the function f(x) = -8x at any point?

  • -16
  • -8 (correct)
  • 0
  • 8

For the function f(x) = +3x, what can be said about its relative minimum and maximum values?

  • It only has a relative maximum value.
  • It has both a relative maximum and a minimum.
  • It has no relative minimum or maximum values. (correct)
  • It only has a relative minimum value.

What is the relative maximum value for the function f(x) = -24x + 5?

<p>-24 (C)</p> Signup and view all the answers

What is the second derivative test conclusion for the function f(x) = -8x?

<p>The function has a local maximum. (D)</p> Signup and view all the answers

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Study Notes

Solving for x

  • First equation solution: X = -3
  • Second equation solution not provided
  • Third equation solution not provided

Finding Relative Extremes Using the Second Derivative Test

  • Function f(x) = -8x
    • Relative maximum value identified: -16
  • Function f(x) = -24x + 5
    • Relative maximum value identified: -24
  • Function f(x) = 3x
    • No relative minimum or maximum values exist for this function

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