For question 2. Equations: A) y=x^2-5B) y=x^2-6x+3 C) y=x^3-3xD) y=2x^3-6x+2

2. Which of these equations are symmetric to the y-axis or origin? (1P.) 3. A rectangle has a perimeter of 350 ft. What length and width would yield the maximum area? (2P.) 4. A man has a farm that is adjacent to a river. Suppose he wants to build a rectangular pen for his horses with 320 ft of fencing. Using the river on the eastern side of his farm as a on side of the pen, what is the area of the largest pen he can build? (3P.)