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4-30.

graphConsider the graphs of and at right. Homework Help ✎

  1. Write an equation that you could solve using points A and B. What are the solutions to your equation? Substitute them into your equation to show that they work.

    Set and equal to each other: 

  2. Are there any solutions to the equation in part (a) that do not appear on the graph? Explain.

    Solve the equation for x.

  3. Write an equation that you could solve using point C. What does the solution to your equation appear to be? Again, substitute your solution into the equation. How close was your estimate?

    Set equal to 0.

  4. What are the domains and ranges of f(x) and g(x)?

    Domain of : All real numbers

    Range of : All real numbers

    Domain of : All real numbers

    Range of