Question

What sine function represents an amplitude of 4, a period of pi/2 , no horizontal shift, and a vertical shift of -3?

Answer 1

PLEASE HELP ASAP I WILL FAN AND MEDAL :)

Answer 2

@triciaal @Hero @Preetha

Answer 3

@Kainui @dan815

Answer 4

The choices are
f(x) = -3 sin 4x + 4

f(x) = 4 sin 4x - 3

f(x) = 4 sin x - 3

f(x) = -3 sin x + 4

Answer 5

@pink.1d

The general form of a sin function is a*sin(bx-c) + d

a = the amplitude, which is 4 in this case
the period is 2pi/b
d is the vertical shift (-3 in this case)

Answer 6

@Vocaloid so the answer is 4 sin something x -3?

Answer 7

@Sepeario

Answer 8

@Vocaloid what is the bx-c PLEASEEEEEEEE

Answer 9

@Vocaloid @Vocaloid

Answer 10

@Sepeario ok i c u viewing my question for a long time so is there any way u can help?

Answer 11

@freckles

Answer 12

I'm sorry I don't really work with this kind of stuff.. :(

Answer 13

Oh its ok im really desperate at this poniinnntt

Answer 14

@Vocaloid omg finally u came back to my quesstion

Answer 15

so the answer is 4 sin something x -3?
what is bx-c

Answer 16

@pink.1d c is the horizontal shift, which is 0 in this case
you can find b using the fact that the period = 2pi/b

Answer 17

@Vocaloid what is the answer tell me

Answer 18

i will medal and fan PLEASE

Answer 19

@pink.1d: I've given you everything you need to know

period = pi/2 = 2pi/b, you can now solve for b

Answer 20

what is b?

Answer 21

ya u r

Answer 22

i do that

Answer 23

hahaha

Answer 24

@pink.1d: Please, all you need to do is solve pi/2 = 2pi/b

Answer 25

oh ok ok ok fine

Answer 26

ITS 4

Answer 27

@pink.1d: see, that wasn't so hard, was it? :)

Answer 28

f(x) = 4 sin 4x - 3

Answer 29

THATS THE ANSWER RIGHT

Answer 30

i thought it was something else thats y i didnt want to solve cuz i thought i didnt know how to but i got mixed w something else

Answer 31

@pink.1d Yup! I wanted you to find b yourself so you would understand how to do it, instead of just me explicitly giving you the answer. Everyone wins that way ~

Answer 32

haha ur smart and THANK YOU for once i understand something