See the picture first, thank you. QUESTIONS::

1. Does each graph represent a linear function? Why?

2. What is the domain of the first graph? second graph?

3. What is the range of the first graph? second graph?

1. yes, both lines are straight

2. domain: (-∞ ∞)

3. range: (-∞ ∞)

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.

what