Helena has five pictures to hang on her wall, from left to right. how many different arrangements of the pictures can she make?

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

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.