1. Add (x2 + 2x + 5) + (3x2 - 3x +1). A. 4x4 - x2 + 6 B. 4x2 - x + 6 C. 3x2 - x + 6 D. 2x2 + x + 6 Hint 2. Determine the sum. A. 12x2 - 9x + 1 B. 12x2 - 9x - 1 C. 12x2 + 9x - 1 D. 12x2 + 9x + 1 Hint 3. Find (-5x + 6) - (-2x - 7). A. -3x + 13 B. -3x + 1 C. -7x - 1 D. -7x - 13 Hint 4. Classify the expression A. trinomial B. binomial C. not a polynomial D. monomial Hint 5. Classify the expression A. binomial B. not a polynomial C. monomial D. trinomial Hint 6. Find the difference (14x2 + 3x + 11) – (10x2 + 5). A. 4x2 + 3x + 6 B. 24x2 + 3x + 6 C. 24x2 + 3x + 16 D. 4x2 + 3x + 16 Hint 7. Find –3x(x2 + 2x + 1). A. -3x3 - 6x2 + 1 B. -3x3 + 6x2 + 3x C. -3x3 + 2x + 1 D. -3x3 - 6x2 - 3x Hint 8. A rectangle is 50 centimeters longer than twice its width. If the perimeter of the rectangle is 160 centimeters, what are the dimensions of the rectangle? A. 70 cm by 10 cm B. 50 cm by 30 cm C. 40 cm by 40 cm D. 60 cm by 20 cm Hint 9. Determine whether the equation y = is linear or nonlinear. Explain. A. nonlinear, the graph is an inverse variation function B. linear, the graph is a straight line C. nonlinear, the graph is an exponential function D. nonlinear, the graph is a cubic function Hint 10. Determine whether the graph represents a linear or nonlinear function. Explain. A. linear, the graph is a straight line B. nonlinear, the graph is a cubic function C. nonlinear, the graph is an exponential function D. nonlinear, the graph is an inverse variation function Hint 11. Graph y = x2 + 3. A. B. C. D. Hint 12. Graph y = -5x2 - 2. A. B. C. D. Hint