Question

Which of the following is not an equivalent form of the compound inequality

x - 1 < -11 or x + 12 > 11

Answer 1

a. x < -10 or x > -1
b. A number line with an open circle on -10, shading to the left, and an open circle on -1, shading to the right.
c. x > -1 or x < -10
d. A number line with an open circle on -10, an open circle on -1, and shading in between.

Answer 2

d

Answer 3

help with one more?