Question

Choose the correct equation for the function of the graph shown below.



y = 1/2cos1/4x
y = 1/4sinx1/2
y = 1/2 cos1/4x
y = 1/4sin1/2x

Answer 1

heres the graph

Answer 2

HI!!

Answer 3

hello

Answer 4

first lets decide sine or cosine
any ideas?
hint: \(\sin(0)=0,\cos(0)=1\)

Answer 5

im really not sure

Answer 6

take a look at the graph
what is y when x is 0?

Answer 7

i dont see when x is 0

Answer 8

????

Answer 9

where is 0 on the x axis?

Answer 10

in the middle of the crossing lines

Answer 11

yes
at the origin \((0,0)\)
so asking what is the curve at \(x=0\) is asking where does it cross the \(y\) axis

Answer 12

i guess it'll on 0.5

Answer 13

yes i think so too

Answer 14

which tells you two things
first it cant be sine, since \(\sin(0)=0\)

Answer 15

so it must be cosine
and also since \(\cos(0)=1\) and here you have \((0.\frac{1}{2})\) the amplitude is \(\frac{1}{2}\) so there must be a \(\frac{1}{2}\) out front

Answer 16

so the answer is either A or C
they look identical to me so maybe there is a typo somewhere in the question

Answer 17

i didin't notice.... its the question because thats how its on my paper