Question

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

x + 16 less than or greater to 11 and x + 16 greater than or equal to 3


A) 11 greater than or equal to x + 16 greater than or equal to 3

B) -5 greater than or equal to x greater than or equal to -13

C.) A number line with a closed circle on -13, a closed circle on -5, and shading in between.

D) A number line with a closed circle on -13, shading to the left, and a closed circle on -5, shading to the right.

Answer 1

D.

combine the inequalities as :
3 <= x+16 <= 11

and interpret the options against above inequality.