Mathematical Concepts Quiz
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Questions and Answers

Which of the following is the domain of the function 1/(3x^2-27)?

  • x ≠ 9
  • x ≠ 0
  • x ≠ -3
  • x ≠ 3 (correct)
  • What is the difference quotient of the function f(x) = 3x^3 - 5x?

  • 3x^2 - 5
  • 9x^2 - 5
  • 9x^2 - 5x
  • 3x^2 - 5x (correct)
  • What is the composition of the functions f(x) = 4x^3 and g(x) = 2^x - 5?

  • 2^(4x^3 - 5)
  • (4x^3)^2 - 5
  • 2^(4x^3) - 5 (correct)
  • 4(2^x - 5)^3
  • How can the graph of the function 1/5 f(x-5)-2 be obtained from the graph of f(x)?

    <p>Stretch vertically by a factor of 5, shift right by 5 units, and shift down by 2 units</p> Signup and view all the answers

    What is the equation of the function f(x) = -4(x + 3)^2 + 2 in vertex form?

    <p>f(x) = -4(x + 3)^2 + 2</p> Signup and view all the answers

    What is the speed of the ball after 5 seconds, based on Galileo's law f(t) = 4.9t^2?

    <p>49 m/s</p> Signup and view all the answers

    What is the average rate of speed of the ball from 5 to 5.1 seconds?

    <p>4.9 m/s</p> Signup and view all the answers

    What are we doing to the time intervals to find the average rate of speed of the ball?

    <p>Dividing them</p> Signup and view all the answers

    What does the average rate of speed of the ball seem to be approaching as t = 5 seconds?

    <p>9.8 m/s</p> Signup and view all the answers

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