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    Mathematics
    Grade10
    Easy

    Question

    Tell whether (-8, 8) is on the graph of f(x) = IxI. If it is, give the coordinates of another point with the same y value.

    1. Yes, open parentheses fraction numerator negative 1 over denominator 8 end fraction comma space 8 close parentheses  
    2. No    
    3. Yes, (8, 8)    
    4. Yes, (1, 8)    

    hintHint:

    We simply plug in the values of x given in the coordinates to check the status of the said point. Then, we put the same value of x with the opposite sign and find the corresponding value of y.

    The correct answer is: Yes, (8, 8)

      Step 1 of 2:
      x = -8, f(x) = |(-8)| = 8
      So, yes, (-8, 8) is on the graph.
      Step 2 of 2:
      When x = 8, f(x) = |8| = 8
      So, (8, 8) is also on the graph.
      Final Answer:
      The right choice is-- A. Yes, (8, 8)

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