Represent the following sentence as an algebraic expression, where "a number" is the letter x.
Twice a number.

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.

no its the same as every other grade

step-by-step explanation:

sorry not knowing about that