Question

1. Choose the function whose graph is given by:


y = -cos x + 2

y = -sin x + 2

y = cos x - 2

y = sin x + 2

Answer 1

@terenzreignz

Answer 2

y=sinx+2

Answer 3

can you explain? I have a few more questions like this and i don't know how to do them

Answer 4

We know that it's plus 2 (not minus 2) because it's above the x axis.

Answer 5

So we know that the value at x = 0 of the non-translated function (the function before we shifted it up 2) would be 0. That means it's sin, not cos.

Answer 6

And we know that it's positive sin because the graph increases from f(0) to f(1), like sin. If it were -sin(x) the graph would be decreasing from f(0) to f(1)

Answer 7

@DDCamp

Answer 8

what about this one?

Answer 9

y=cosx-2

Answer 10

y=cos x - 2 or y=cos(x-2)

Answer 11

y=cos x - 2

Answer 12

okay what if it it above and below the x axis?

Answer 13

y=cosx-1?

Answer 14

http://cims.nyu.edu/~kiryl/Precalculus/Section_5.3-Trigonometric%20Graphs/Trigonometric%20Graphs.pdf

Answer 15

?