9th Grade Algebra
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Questions and Answers

Which of the following statements is true about functions in algebra for 9th grade students?

  • Functions can only take on integer values
  • Functions can be represented by graphs or equations (correct)
  • Functions can only be used in algebra and not in other areas of math
  • Functions can only have one input and one output

    • What is the difference between a function and a relation in algebra for 9th grade students?

  • A relation can only have one input and one output, while a function can have multiple inputs and outputs
  • A relation can only be represented by an equation, while a function can only be represented by a graph
  • A function can only have one input and one output, while a relation can have multiple inputs and outputs (correct)
  • A function and a relation are the same thing

    • Which of the following is an example of a function in algebra for 9th grade students?

  • x^2 + y^2 = 1
  • y = x^2 + 1 (correct)
  • y = |x|
  • y = 2x + 3 and y = -2x + 3

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