True or False If you know at least one
angle on the diagram
below you can find the
other three.

true

Step-by-step explanation:

answer: i think it is (1,-2)

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.