I have a question about graphing functions.

The function is: y=-cosx

I know this means it flips across the X axis, but what would that look like? How would I draw that? Thank you!

Question

I have a question about graphing functions.

The function is: y=-cosx

I know this means it flips across the X axis, but what would that look like? How would I draw that? Thank you!

sweetburger · Answer

so you know what the graph of cos(x) looks like right?

rakuske · Answer

Yes!

faiqraees · Answer

|dw:1460910853821:dw|
Graph for cosx

faiqraees · Answer

- cos x means reflection of the graph of cos x over the x axis

sweetburger · Answer

All this is in flipping it upside down. Parts of the graph that were above the x axis on the graph of cos(x) are now below the x-axis in -cos(x)

rakuske · Answer

Ah, so basically the opposite in terms of the X-axis

sweetburger · Answer

yes pretty much

faiqraees · Answer

|dw:1460910987489:dw|
Graph for -cosx