Which of the following is not a way to represent the solution of the inequality 2x - 1 greater then or equal to -7?

x -3

x -3

-3 x

A number line with a closed circle on negative 3 and shading to the right.

Question

Which of the following is not a way to represent the solution of the inequality 2x - 1 greater then or equal to -7?

 x  -3

 x  -3

 -3  x

 A number line with a closed circle on negative 3 and shading to the right.

campbell_st · Answer

you need to solve the inequality 1st 

$$2x - 1 \ge -7$$

add 1 to both sides

then divide both sides by 2

when graphing on the number line inequalities containing an equals sign need a closed circle. 

the direction of the shading is the same direction as the inequality in the solution.