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    Mathematics
    Grade10
    Easy

    Question

    Tell whether (-2.3, -2.3) is on the graph of f(x) = IxI. If it is, give the coordinates of another point with the same y value.

    1. Yes, (2.3, -2.3)    
    2. No    
    3. Yes, (-2.3, 2.3)    
    4. Yes, open parentheses fraction numerator negative 1 over denominator 2.3 end fraction comma space 2.3 close parentheses

    hintHint:

    We simply plug in the values of x given in the coordinates to check the status of the said point. If the point is on the graph then, we put the same value of x with the opposite sign and find the corresponding value of y; otherwise, we conclude our solution.

    The correct answer is: No

      Step 1 of 2:
      x = -2.3, f(x) = I(-2.3)I = 2.3
      So, no, (-2.3, -2.3) is not on the graph.
      Hence, we conclude the solution.
      Final Answer:
      The right choice is-- A. No

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