Unit 8 Test Review

A golfer hit a golf ball from a tee box that is 6 yards above the ground. The graph shows the height in yards of the golf ball above the ground as a quadratic function of x , the horizontal distance in yards of the golf ball from the tee box.

What is the domain of the function for this situation?

• 0 ≤ x ≤ 230

• 6 ≤ y ≤ 36

• 0 ≤ y ≤ 36

• 6 ≤ x ≤ 230

Which function is equivalent to y = 3( x + 2)² +7?

• y = 3x² + 12x + 33

• y= 3x² + 12x + 19

• y = 3x² + 19

• y = 3x² +33

Which function best represents h?

• h(x) = x² - 4x +3

• h(x) = x² + 2x − 3

• h(x) = x² – 2x − 3

• h(x) = x² + 4x +3

Given the graph of the quadratic function, determine the zeros of the function.

Which equation best represents the axis of symmetry?

• y = 4

• x = 0

• x = 2

• y = 6

Which coordinates best represent the vertex of the graph?

• (1, -2)

• (-0.4, 0)

• (0, -1)

• (2.4, 0)

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

• The zeros are 27 and 9

• The zeros are 32 and 27

• The only zero is 9

• The zeros are 32 and 9

The graph of f(x) = x² was transformed to create g(x) = f(x + 3) + 6.

Complete the sentence about this transformation.

The graph of f is translated 3 units ​ (a)   and 6 units ​ (b)   to create the graph of function g.

• left
• up
• right
• down

The graph of f(x) = x² is transformed to create the graph of h(x) = 2f(x). Which graph best represents f and h?

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