Question

pre cal help

Answer 1

@Shadow

Answer 2

@Vocaloid

Answer 3

1. tan x and cot x ?

Answer 4

Hm. I think so. (don't quite remember if tan is considered the parent of cot)

Answer 5

anyway, for 2) going from 4 to (1/2) means we divided by 8, so this would be a vertical compression

does multiplying the function by -1 reflect across y or x?

Answer 6

y

Answer 7

good, so answer choice 2 is the only possibility

Answer 8

3 is the hard one with 3 answers

Answer 9

I think you posted #4 twice, I don't see a #3

Answer 10

4 is either a or c because b and d is like who made these answer choices lol

Answer 11

the period of 4 is 6pi (since it takes 6 pi units to repeat a cycle)

to figure out how we would write that into the equation, find the value of b

where

period = 2pi/b

Answer 12

is answer a because i graphed c and it didn't turn out like the graph

Answer 13

for #4? no

if 6pi = 2pi/b what is b?

Answer 14

2pi/3 ? i know the period is 2 pi

Answer 15

the period is not 2pi, it is 6pi (from looking at the graph, it takes 6pi to repeat the cycle)

Answer 16

period = 6pi = 2pi/b
b= ?

Answer 17

huh i calculated in mathway

Answer 18

1/3

Answer 19

good, so b = (1/3) making the equation sin(x/3) = answer C

Answer 20

that's all the questions I can see, you didn't post #3 yet

Answer 21

now number3

Answer 22

scroll up i did

Answer 23

here it is again

Answer 24

well we know that the period of sec is normally 2pi, but here it's 6pi, so using our reasoning from before

sec(x/3) has to be part of the equation

it's shifted up by 2 so sec(x/3) + 2 should be one of them

Answer 25

is d another?

Answer 26

yeah, d works too (I was trying to figure out why but the graph does come out identical)

Answer 27

now the difficult part is to figure out which csc graph works, I would honestly just graph them b/c it's difficult to telll from the equation

Answer 28

f maybe or e ?

Answer 29

just from graphing (I don't remember how to do this by hand atm) it comes out to be y = -csc(x/3 + 3pi/2) +2 being the one that matches

Answer 30

ok

Answer 31

you sure its not positive