Ay=cos(x+pi/2)
b y=cos(x+2pi)
c y=cos(x+pi/3)
d y=cos(x+pi)

D

Step-by-step explanation:

There was actually too much work for this on my paper so I can't really show it, but if you can memorize this parent function I would.

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

the answer should be a. snail