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Mathematics 14 Online
OpenStudy (narissa):

please help!!

OpenStudy (narissa):

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (narissa):

umm i think i add the x values into the equation like this y=|-4+2|-1?

OpenStudy (narissa):

u there @skullpatrol ?

OpenStudy (skullpatrol):

Yes, you are exactly right: replace the "X" with the given number then simplify :-)

OpenStudy (skullpatrol):

What is -4 + 2 = ?

OpenStudy (narissa):

-2

OpenStudy (skullpatrol):

Now take the absolute value

OpenStudy (narissa):

2?

OpenStudy (skullpatrol):

| -2 | = 2

OpenStudy (narissa):

okay so do i put 2 for y?

OpenStudy (skullpatrol):

You still have to subtract 1, right?

OpenStudy (narissa):

yes 1 would be my answer right?

OpenStudy (skullpatrol):

Yes, y = 1 for x = -4.

OpenStudy (narissa):

what about (x,y) what do i have to do with that?

OpenStudy (skullpatrol):

(-4, 1) (x, y)

OpenStudy (narissa):

oohh okay ty so much i think i got it

OpenStudy (narissa):

for the rest of them would all the y values be 1?

OpenStudy (skullpatrol):

No, you must now go through each of the given points and calculate the corresponding y value.

OpenStudy (narissa):

oh yeah sorry i was confused for a sec lol

OpenStudy (skullpatrol):

Then plot each point on the x-y coordinate plane.

OpenStudy (narissa):

okay just finished doing them all so the answer i got is (-4,1) (-3,2) (-2,1) (-1,0) (0,1) am i correct?

OpenStudy (skullpatrol):

Plot them to see if you get a "V-shaped" graph.

OpenStudy (narissa):

ok

OpenStudy (narissa):

nope :/ let me try again

OpenStudy (narissa):

hmm this is more difficult than i thought ~_~

OpenStudy (skullpatrol):

Keep trying

OpenStudy (narissa):

can you please help me with the second one

OpenStudy (narissa):

|-3+2|-1

OpenStudy (skullpatrol):

For x = -3 you should get y = 0 since | -1 | = 1

OpenStudy (narissa):

so i should get -3,0 or -3,1?

OpenStudy (skullpatrol):

( -3 , 0 )

OpenStudy (narissa):

okay i got that for #3 |-2+2|-1 i got -2,1 is that correct

OpenStudy (skullpatrol):

Nope.

OpenStudy (skullpatrol):

What is 0 - 1 = ?

OpenStudy (narissa):

-2+2= 0 0-1=-1

OpenStudy (skullpatrol):

Yes, keep going :-)

OpenStudy (narissa):

y is -1? but i thought the bars keep it from being negative?

OpenStudy (skullpatrol):

$$\Huge y = | x + 2 | - 1$$

OpenStudy (skullpatrol):

Only what is inside the bars stays positive, right?

OpenStudy (narissa):

ok

OpenStudy (narissa):

it made a V shape thanks for your help can you check one of my papers?

OpenStudy (skullpatrol):

Y is the result of the entire calculation on the right hand side of the equation :-)

OpenStudy (narissa):

ill post it in another post so u can get a extra medal

OpenStudy (skullpatrol):

np, try your best to finish

OpenStudy (skullpatrol):

I'm not here for the medals :-)

OpenStudy (narissa):

okay i posted another question i tagged u i just need you to check it

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