Which function is a quadratic function? A. q(x) = (2x + 4)3 +3
B. r(2) = (-6x - 4)* + 3 (2+2)
C. s ( x ) = -(x – 6) + 3(x+1)
D. t(x) = (x – 4)2 +3

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? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.