PLEASEE ILL GIVE SO MUCH POINTS

Step-by-step explanation:

if point (x,y) is rotated 90 degrees, x becomes y and y becomes -x

for point (x,y) rotated 90 degrees it will become (y,-x)

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: