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Rational equations

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  • Rational equations are tricky because you can't divide by zero.

    What happens to the graph as you get close to dividing by zero?

    What determines the shape and postion of the graph?

    Try to find the answers at this link:

  • Once you have explored the link think about the following questions:

    Enter your thoughts about them on the group blog.

    What determines the overall shape of the graph?

    What determines the horizontal position of the graph?

    What determines the vertical position of the graph?

    Can you make the graph look like a horizontal line? How?

    What is missing from the line? Why?

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