Which are quadratic equations

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?

If the line in the graph is shifted up two units which is the equation of the new line

Asap! i need this done today and i really don’t understand it. some one ! will mark