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Home > INT3 > Chapter 3 > Lesson 3.2.3 > Problem 3-103

3-103.

    Solve each of the following inequalities. Express the solutions algebraically and on a number line.  Homework Help ✎

  1. Plot the boundary point. Should it be shaded or not? Test values on either side of . Which side makes it true?

    line graph a

  1. See part (a). Rearrange the equation so that it equals zero.

    The equation can't be factored. Use the Quadratic Formula.

    Plot the boundary points. Test a point between them. Does it make the inequality true? If so, shade between.
    If not, test points on the outside.

    or

    line graph b