Question

Consider the function y = -2-3cos(x+pi). What effect does the -2 have on the original graph?

Answer 1

@CGGURUMANJUNATH

Answer 2

vertical shift down two units
horizontal shift right two units
horizontal shift left two units
vertical stretch by factor of 2

Answer 3

I think its B?

Answer 4

@Nurali

Answer 5

i think ur answer is correct.

Answer 6

ok

Answer 7

@AntarAzri

Answer 8

anyone else think its B?

Answer 9

y-Intercept ?

Answer 10

it has to be one of the options

Answer 11

\(cos(x+1\pi)=0\) ?

Answer 12

sorry about the : \(1\pi\)

Answer 13

its ok umm I don't know what you mean with the equation I haven't gotten into that yet or well at least they haven't taught me that

Answer 14

vertical shift down two units
horizontal shift right two units
horizontal shift left two units
vertical stretch by factor of 2

Answer 15

do you know it?

Answer 16

Let me investigate

Answer 17

ok btw I'm taking a timed practice set of problems and have three minutes for this question so..

Answer 18

Btw, I'm not in exam and i have a lot of time to think about science

Answer 19

Might help you :
http://www.wolframalpha.com/input/?i=Plot%28y+%3D+-2-3cos%28x%2Bpi%29%29

Answer 20

okayyy so it would be A?

Answer 21

@AntarAzri

Answer 22

time moves fast in the real world btw

Answer 23

@wolf1728

Answer 24

anyone know trig?

Answer 25

I made some graphs of the equation
They are in this order
-2 equation unchanged
-3 in place of the -2
-1 in place of the -2

Answer 26

so vertical shift down 2 units?

Answer 27

I'm looking at these right now
-2 the maximum is 1 min -5

-1 the maximum is 4 min -2

-3 the maximum is 6 min 0

Answer 28

ok well while you look I have one last question for the day "Which function's graph has asymptotes at values x = +/- npi?
1. y = csc x
2. y = tan x
3. y = cos x
4. y = cot x

1 only
2 only
1 and 3 only
1 and 4 only

I think its either 1 or 1 and 3 only

Answer 29

@AntarAzri

Answer 30

GEEZ - I have graphs of all 6 trig functions but it asks for asymptotes at +/- PI?

Answer 31

+/- NPi

Answer 32

and what is NPi ??

Answer 33

integer times pi on x axis

Answer 34

GEEZ can't they just ask for degrees ??????????????

Answer 35

I think like 2pi

Answer 36

So they want it in radians? They could have said that!!

Answer 37

lol I know

Answer 38

so what do u think? 1 only? 1 and 4 maybe?

Answer 39

I'll post the max and min of each OR here's a link to the graphs:
http://1728.org/trigtutr.htm

Answer 40

You'll have to scroll to the bottom.

Answer 41

ok umm they all deal with degrees and numbers I'm looking for the ones with pi

Answer 42

So would 1 PI be 57.2957795131 ??

Answer 43

I guess

Answer 44

It appears that the asymptotes appear at 0° 90° 180° 270° and 360°
I don't think any of those have a neat integer value of PI do they?