I need help on number 10.

is there any photos or whatever?

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

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.