Question

explain how to
Find the amplitude of y = 3 sin x.

Answer 1

y = A * sin(bx)
A = amplitude


what is it?

Answer 2

3

Answer 3

you got it

see how easy it was

Answer 4

Describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x).

f(x) = 9 cos x; g(x) = cos x

Answer 5

what do you multiply g(x) to get f(x)?

Answer 6

9

Answer 7

A.Horizontal stretch by a factor of 9
B.Vertical stretch by a factor of 9
C.Horizontal shrink by a factor of 1over9
D.Vertical shrink by a factor of 1over9

Answer 8

B.Vertical stretch by a factor of 9

Answer 9

you can graph them and see the change

Answer 10

how do you graph y=2/3sin1/2x

Answer 11

2/3 is the amplitude correct?

plug in values for x

y=2/3sin1/2x
x=0; y = 0

can you try it then i will go over it with you

Answer 12

this is a differnt question it says find thet graph that goes with
y= 2
--- sin 1
3 ----
2 x

Answer 13

is that the question?\[\frac{ 2 }{ 3 }*\sin(\frac{ 1 }{ 2x })\]

Answer 14

sara you there?

Answer 15

its not 2x its 1/2 x

Answer 16

1
--- x
2

Answer 17

ok amplitude is 2/3
period is \[0 \le x \le \frac{ 2*\Pi }{ 1/2 }\]

Answer 18

plug in 0 what do you get
\[\frac{ 2 }{ 3 }*\sin{\frac{ 1 }{ 2 }*0}\]

Answer 19

+ you have the amplitude; which graph shows the right amp?

Answer 20

how do i know which graph shows 2/3

Answer 21

all graphs has marked where 1 is