Inequalities.

Question

Inequalities.

anonymous · Answer

Choose the correct description of the solution to the inequality -2x < 10.  

The inequality has a line under, so it is closed

anonymous · Answer

we're going to subtract...10? from both sides

anonymous · Answer

brb

anonymous · Answer

Divide -2 from both sides... your first objective is to get x alone

anonymous · Answer

ok back

anonymous · Answer

1 and -5

anonymous · Answer

Mmm. no not quite. what is 10 divided by 2.

anonymous · Answer

ohhh my bad. i thought it was -10

anonymous · Answer

5

anonymous · Answer

yup... do now it looks like this - 
x<5

anonymous · Answer

closed circle on -5 shading to the right?

anonymous · Answer

Almost. it would be to the left. Cause the sign points left. and anohter way to look at it is- its saying the number is less than 5, so it couldnt be shaded ot the right.

anonymous · Answer

ohh i see now. thanks for the help so far. i think i'm okay for the most part but the next question is a little more complex

anonymous · Answer

Oh ok... yeah no problem! I might see it if you post it on here..

anonymous · Answer

Solve the inequality 4x - 5 < 2x + 11. x > 8 x > -8 x < 8 x < -8

anonymous · Answer

So combine like terms... 
4x - 5 <  2x + 11
    +5         +5
4x < 2x + 16
-2x   -2x
2x < 16

anonymous · Answer

Do you have to graph it, or juts figure out which one is the inequality in simplest form?

anonymous · Answer

just figure out the inequality in simplest form

anonymous · Answer

ok. Do you get what to do next?

anonymous · Answer

x<8

anonymous · Answer

good job...

anonymous · Answer

Thanks! :)

anonymous · Answer

no problemo...

anonymous · Answer

Which of the following is not a way to represent the solution of the inequality 2x - 2 <  4? 

The inequality has a line under it, so it's closed?

anonymous · Answer

Yes it is closed... and you would add 2 to each side next..

anonymous · Answer

2 and 6

anonymous · Answer

where did the 6 come from?

anonymous · Answer

4+2

anonymous · Answer

oh oops lol i see it now...

anonymous · Answer

refresh my memory please lol. what do i do next?

anonymous · Answer

then you get x alone, by dividing each side by 2.

anonymous · Answer

1 and 3

anonymous · Answer

wait though. what would the answer be once we've simplified the numbers?

anonymous · Answer

remember when you divide the number from the x, it doesnt leave a 1. its the same either way.

anonymous · Answer

so in other words x=1x
same thing

anonymous · Answer

Ok. the answer would be x<3 
cause 6 divided by 2 is 3...

anonymous · Answer

with a line under the inequality sign