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posting in a second!
no worries, he said he'd help me, just needed to open a new question :)
Lizzy, first create your number line and Include the critical points.
|dw:1442692154488:dw| how do i know if they're included or not?
sorry that extra 1 isn't supposed to be there oops
Well We don't need to include any open or closed circles just yet. We're just identifying the critical points for now.
explain how you figured out the critical points.
i took the factors and just solved for x and got -5,-5.4/3,-1
Okay so, plot-5, 4/3 and -1 on your number line
Yesqr posted that already but, you only want to plot the critical points for now.
aren't those the critical points?
The critical points are the valves you found earlier from the factors of the expression.
yeah, -5, 4/3, and -1 right?
those are the ones i plotted :/
you mean the 0 that i put
That,, almost right. You plotted 4/5 instead of 4/3
ahhh my bad
Your number line Should also include negative And positive infinity. We want to be able to dearly See the distinct intervals involved here.
Remember, if you do something right the first time, then you'll only have to it once.
Do you know what the next step is?
mm i'm not sure, but i distributed :/ i'm not sure if that;s correct
How many intervals do we have on the number line?
WE HAVE TO TEST
What can we do with each interval?
0 does not
and 2 does
Make sure you're testing Numbers from each of the distinct Intervals involved.
i did :) -6,-3,0, and 2
Okay yes you have done it Correctly it seems,
I'm imagining the graph of expression. I think I understand Why you're getting these results
Usually the solution Intervals do not Overlap.
But in this case we have Overlap because the graph Of the expression hits zero then goes back In the positive direction
So What is your solution for this one?
Okay, it looks right.
I didn't do any computation I assume your work is correct
okay, thank you so much! (:
YW Good luck with the rest Hope I was able to help Make your HW easier
you did thanks!!! :)