Mid Chapter 8 Test Review

If the value of "a" is positive, which direction does the graph open?

• up
• down
• left
• right

If the value of "a" is negative, which direction does the parabola open?

• up
• down
• left
• right

Find the axis of symmetry and vertex of the parabola: y = 2x² - 8x + 6

• x = 2 ; (2, 14)
• x = 2 ; (2, -2)
• x = -2 ; (-2, 30)
• x = -2 ; (-2, 14)

Which of the following parabola is the widest?

• g(x) = -5x²
• f(x) = -2x²
• h(x) = 3x²
• g(x) = ⅓x²

Which of the following parabola is the narrowest?

• g(x) = -5x²
• f(x) = -2x²
• h(x) = 3x²
• g(x) = ⅓x²

Which of the following equations is quadratic?

• y² - 2 = 2x
• y = 2x³ + 4
• y = 2x² + 4
• y + 4 = 2^x

Which of the following will be a parabola that opens down?

• y = x² -1
• y = -x²
• y = -x -1
• y = 3x²

How is y = x²+ 3 different from y = x² ?

• y = x²+ 3 moves UP 3
• y = x²+ 3 moves RIGHT 3
• y = x²+ 3 moves DOWN 3
• y = x²+ 3 moves LEFT 3

How is y = x² - 5 different from y = x² ?

• y = x² - 5 moves UP 5
• y = x² - 5 moves RIGHT 5
• y = x² - 5 moves DOWN 5
• y = x² - 5 moves LEFT 5

What are the coordinates of the y-intercept?

• (-3, 0)
• (0, -3)
• (1, 0)
• (3, 0)