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Assoli18 [71]
4 years ago
11

Which pair of functions has identical graphs?

Mathematics
1 answer:
tino4ka555 [31]4 years ago
6 0
Both a) y=sin (x+ pi/2) and b)  y=-cos(x-pi) has identical graphs.

The +- pi/2 shifts to the LEFT or RIGHT respectively. So the first plot is simply a cosine curve.
The second is a cosine shifted by pi, which gives -cos(x) but we have a negative out front so both (a) and (b) are cosine.

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To find out how much more the Zoo costed, subtract 147 from 153.

153 - 147 = 6

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