The original function is

Write as or

First solve the case .

According to addition property of equality: if a = b, then a + c = b + c.

         (Add 1 to each side)

               (Additive inerse property: )

                      (Additive identity property: )

                             (Add: )

                        (Divide each side by 4) \ \

                             (Cancel common terms) \ \

                          (Divide: )

Next solve the case .

                          (Product of two same signs is positive)

According to addition property of equality: if a = b, then a + c = b + c.

              (Add 1 to each side)

                     (Additive inerse property: )

                           (Additive identity property: )

                                  (Add: )

                            (Divide each side by 4) \ \

                                 (Cancel common terms) \ \

                              (Divide: )

First, draw a number line.

To graph the solutions set, mark the numbers –1.25 and 1.75 on number line.

The solution set is .