Question

can you pls help me?
graph f(x) = sin (pi-x)

PLEASE!

Answer 1

same graph as
y=sin x

Answer 2

really? how come?

Answer 3

@ienarancillo: Its a property of the sine function. An easy way to imagine it is this: When you plot the sine of a value "taken" out from pi, its essentially the same thing. You can prove it by expanding the equation.

Answer 4

aww, thankyou so much!

Answer 5

one last question please?

Answer 6

Sure thing. Shoot

Answer 7

please @sumi29 :)

Answer 8

Ok

Answer 9

Lets work this out.

Answer 10

Can you graph g(x)? Just simple g(x), nothing fancy. Try it out. Recall that since the abs function is used, ALL values will be positive.

Answer 11

yup, ill try. :)

Answer 12

is it like this? lol. sorry @sumi29

Answer 13

@ienarancillo : Brilliant. You are correct. Now, lets move on. We know the graph of g(x). What happens when we try to plot g(-0.5x)? What changes?

Answer 14

Haha. irdk bout that part. but im sure it's not the vertical and horizontal shift that changes. i guess the period changes? lol. just guessing

Answer 15

Well, two things change. The sign, and the value (since you are dividing ALL values of the input, x, by half)!! So now that you know this, try it out. Don't worry, you are on the right track!

Answer 16

weee. ok thanks. i'll get back to you in a bit. :)

Answer 17

so, ill just pick any values of x which is in the domain given and subsitute it to (-1/2x), is that it? :)

Answer 18

@sumi29 :)

Answer 19

@ienarancillo : Yes, you are correct! You have already solved the question!

Answer 20

awww, HAHAHA. THANKYOU SO MUCH FOR YOUR HELP!

Answer 21

@ienarancillo : You are welcome. Don't hesitate before asking more questions. :-)