Algebra I Quiz#7

The graph of quadratic function h is shown. Which function best represents h?

• h (x ) = x ² + 2x - 3

• h (x ) = x ² - 2x - 3

• h (x ) = x ² + 4x + 3

• h (x ) = x ² - 4x + 3

Which expression is a factor of 30x² - 4x - 16?

• 5x + 4

• 3x - 2

• 5x - 4

• 3x - 4

Which statement about f(x) = 4x² - 36x + 81 is true?

Which statement about the function n(x) = 5x² - 20x + 12 is true?

The graph of a quadratic function is shown on the grid.

• The function has 3 zeros.

• The maximum value of the function is 3.

• The vertex of the graph of the function is (4, 1).

• The equation of the axis of symmetry of the graph of the function is x = 1

Which expressions are equivalent to 12x² - 48x + 48?​ (a)   ​ (b)  

• 12(x - 2)^2
• -12(x^2 +4x +4)
• 12(x - 4)(x - 1)
• -12(x + 2)^2
• 12(x^2 - 4x + 4)

Which quadratic in vertex form can be represented by the graph that has a vertex at (1, 46) and passes through the point (3, 10)?

• y = 9(x - 3)² + 10

• y = 9(x - 1)² + 46

• y = -9(x - 3)² + 10

• y = -9(x - 1)² + 46

The table represents some points on the graph of quadratic function g. What is the range of g?

The function f(x) = x² was transformed to create the function g(x) = f(x - 3) - 9. What are the coordinates of the vertex of the graph of g?

(​ ​ (a)   ,​ ​ (b)   )

• 3
• 9
• 0
• -3
• -9

The graph of a quadratic function is shown. Which values best represent the zeros of this function?​ ​ (a)   ​ (b)  

• x = 1
• x = -4
• x = -1
• x = 3
• x = 0
• x = -3