Question

I don't understand this PLEASE HELP! I will give a medal!!!
Which of the following is not a way to represent the solution of the inequality 8x - (5x + 4) greater than or equal to -31?

x greater than or equal to -9

-9 less than or greater to x

A number line with a closed circle on -9 and shading to the left

A number line with a closed circle on -9 and shading to the right

Answer 1

Check to see if you have written the second answer correctly. Should it read like this: -9 less than or equal to x?

\[8x-(5x+4)\ge-31\]\[8x-5x-4\ge-31\]\[3x-4\ge-31\]\[3x \ge-27\]\[x \ge-9\]

Answer one is the right way
Answer four is the right way
Answer three is the wrong way
Answer two a typo?

See this web site

http://www.mathsisfun.com/sets/intervals.html