Question

Consider the leading term of the polynomial function. What is the end behavior of the graph?
-3x^5 + 9x^4 + 5x^3 + 3
a. The leading term is -3x^5. Since n is odd and a is negative the end behavior is up and up

b. The leading term is -3x5. Since n is odd and a is negative the end behavior is down and down

c. The leading term is -3x5. Since n is odd and a is negative the end behavior is up and down

d. The leading term is -3x5. Since n is odd and a is negative the end behavior is down and up
I have C. Is that correct? If not, Please tell me and explain. But explain first!!:D Thanx

Answer 1

correct

Answer 2

Indeed!

Answer 3

Hahha:D Thanx. Cuz I thought I was wrong. My sister was saying it was supposed to be D. I have explained many times!:D Anyways..Thanx again!!:D I need help with another one though.

Answer 4

without the - it would be

Answer 5

Are you giz willing to help me with another one?

Answer 6

they will always looks like x,-x,x^2,or -x^2

Answer 7

what's why we are here

Answer 8

Thanx. Ok. Here is what I need to solve for:
\[\sqrt{2x+8} -6 = 4\]

Answer 9

Step 1...add 6 to both sides

Answer 10

Step 2... Square both sides in order to eliminate that square root

Answer 11

Wait....You're going to fast Lol..I would add the 6 to the four. Right?

Answer 12

Correct :)

Answer 13

Ok. So..I have:
\[\sqrt{2x+8}=10\]

Answer 14

So that would leave us with \(\ \sqrt{2x + 8} = 10\) right!

Answer 15

Now we square both sides

\[\large (\sqrt{2x + 8})^2 = (10)^2\]

Answer 16

Because what that does...is make this happen

\[\large 2x + 8 = 100\]

It eliminated that square root, because SQUARING a SQUARE ROOT cancels each other out

Answer 17

Ok. Makes sense now;) So now it would be:
\[2x=108\] Right? And
\[x=54\]

Answer 18

Am I right?

Answer 19

Ahh not quite....we have

\[\large 2x + 8 = 100\]

Well since 8 is being ADDED to the 2x...we want to SUBTRACT it to cancel it out...so we need to subtract 8 from both sides of this equation not Add

Answer 20

Oh, wait. Common mistake. Wow. Thanx for noticing it:D
\[2x=92\]
Divide by 2 and I get 46. That should be correct. Right?

Answer 21

Indeed :)

Answer 22

Thanx for all your help!!!!:D

Answer 23

It's Algebra 2. Just started this class like Last week.

Answer 24

Of course :) and yeah it CAN be tricky but once you get it, it seems like elementary. Trust me :P

Answer 25

Hahaha:D Yep! That's really true. Whenever I was In 8th grade I took pre algebra. And I got it down like in a month. But when I started practicing it, Lol, It was like Kindergarten. Then I had to tutor some students!!:D Lol.

Answer 26

Exactly :) so stick with it, remember to "eliminate" and isolate the variable to solve for it...and you'll be all set :)

if not, well I'm always here :D haha

Answer 27

Hahaha:D Yea. I even had to help my older brother with this for college when he was taking his pre-reqs. Lol. Yep! You always explain it sooooooooooooooooooooooooo good:D

Answer 28

Haha glad to help hun :) alright, I must retire for tonight but if you need anything else feel free to message me again :)