Choose the correct description of the graph of the inequality -x > 3.
A Open circle on -3, shading to the left.
B Closed circle on 3, shading to the left.
C Open circle on 3, shading to the right.
D Closed circle on -3, shading to the right.
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-x > 3
You want x but you have -x, so you need to multiply both sides by -1.
You must be careful with an inequality bec when you multiply or divide both sides by a negative number, the direction of the inequality sign changes.
@mathstudent55 is giving the explanation if you don't understand what I did.
thank you both! @Brittni0605 and @mathstudent55 any chance one of you could help me with another?
Sure post a new post pls
@Brittni0605 Choose the correct description of the graph of the inequality x - 8 < 5x.
A Open circle on -2, shading to the left.
B Closed circle on -2, shading to the left.
C Open circle on -2, shading to the right.
D Closed circle on -2, shading to the right.
My answer is C am I correct?
@Brittni0605 Choose the correct description of the graph of the inequality -5x greater than or equal to 25.
Open circle on -5, shading to the left.
Closed circle on -5, shading to the left.
Open circle on 5, shading to the right.
Closed circle on 5, shading to the right.
@Brittni0605 so it would be B?
@Brittni0605 thanks here is another one: Solve the inequality 4x - 16 > 6x - 20.
x < 7
x < 2
x > 7
x > 2
@Brittni0605 would the answer be B?
B is correct
@mathstudent55 thank you :)
@mathstudent55 , @Brittni0605 maybe you both could help me with this: Which of the following is not a way to represent the solution of the inequality 2(x + 1) greater than or equal to 20?
A x _>__9
B 9 _<__ x
C A number line with a closed circle on 9 and shading to the left.
D A number line with a closed circle on 9 and shading to the right.
I apologize, I have to sign off. @mathstudent55 is doing a fine job of helping you.