Geometry(please help on 1 and 2)

1. C

2. B

Step-by-step explanation:

1. Remember your rules for rotating. When you're rotating 180 degrees (x,y) --> (-x,-y), this means that you flip your signs. So for example, (10, -3) turns into (-10, 3) the only thing you're changing are your signs.

2. Once again, remember your rules for rotating. When rotating 90 degrees clockwise flip your x and y, and change the sign of x. So (x,y) --> (y, -x). So for example, (13, 5) --> (-5, 13)

At the end of the day, this all comes down to knowing your rules and practicing. I promise you it gets easier. Good luck!

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

its adding 5.5 each time

step-by-step explanation: