Consider the function y = 2cos(-x)-4. what effect does "-x" have on the basic graph?
a)flip over the vertical axis
b)horizontal shift left 1
c)vertical shift down 1
d)flip over horizontal axis

A)

But really there is no effect since cos(-x)=cos(x).

Step-by-step explanation:

Cosine is an even function.

Even functions are symmetric about the y-axis.

So really for cosine; cos(-x) has no change to cos(x) since they are equal.

But if you keep in mind that cosine is symmetric about the y-axis, then it has been reflected over the y-axis; this is the vertical axis.

A)

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.

a

step-by-step explanation:

jjddbdhid r