1. The graph of y = -4x2 - 1 is _____. A. a parabola B. a circle C. None of these is correct. D. a straight line Hint 2. How many diagonals are connected to each vertex for a 25-sided polygon? A. 25 B. 22 C. 21 D. 20 Hint 3. Find a quadratic equation for the table. A. y = 5x2 + 1 B. y = 5x2 – 1 C. y = 5x2 – 2 D. y = x2 – 5 Hint 4. What is the new equation if the graph y = 2x3 – 6x2 is moved down 1 unit? A. y = 2x3 – 6x2 + 1 B. y = 2x3 – 5x2 C. y = x3 – 6x2 D. y = 2x3 – 6x2 – 1 Hint 5. Consider the equation xy = 3. What happens to the value of y when x doubles? A. y halves B. y doubles C. y triples D. y quarters Hint 6. Find the equation of the following graph. A. y = x3 B. y = x2 C. y = D. y = Hint 7. What is true of the second differences for the equation x2 – 6x + 12? A. they are constant B. they increase by 1 C. they decrease by 1 D. they increase by 12 Hint 8. What type of relationship does the equation have if its second differences are constant? A. cubic B. linear C. quadratic D. constant Hint