Choose the correct description of the graph of the inequality -2x greater than or equal to 10.
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.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (ryan123345):
Well first you have to get x alone by dividing a negative 2 on both sides which switches the signs
OpenStudy (ryan123345):
so you get \[x \le-5\]
OpenStudy (ryan123345):
no. you switch the sign because you divided by a Negative number
OpenStudy (dmezzullo):
yes thats correct
OpenStudy (ryan123345):
lol Luis xD
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (dmezzullo):
So B
OpenStudy (ryan123345):
so automatically since you know that its not only less than but also equal to thats means you put a solid dot.
OpenStudy (dmezzullo):
yes
OpenStudy (ryan123345):
so you can eliminate A and C
OpenStudy (ryan123345):
so now a little trick is that the way the inequality sign is pointing is the way you shade in the line
Still Need Help?
Join the QuestionCove community and study together with friends!