Quadratics Review

A quadratic function has zeros -7 and 9.

What are the linear factors of the function?

• (x+7) (x-9)

• (x-7) (x+9)

• (x+7)(x+9)

• (x-7)(x-9)

What is the axis of symmetry for the following equation?

y=4x²-8x+9

• x = 5

• x=1

• y = 1

• y = 5

What is the vertex of the quadratic function: y=1/2(x-3)²+8?

• (3,8)

• (-3,-8)

• (-3,8)

• (3,-8)

What are the x-intercepts?

• 0 and 2

• -4 and 0

• 2 and 3

• 0 and 4

Use the graph to determine the solutions of the equation

0 = x² - 5x + 1

• 0 and 5

• 0.5 and 4.5

• 0.2 and 4.8

• 1 and 7

The graph below describes a ball that was kicked. Which of the following is a true statement describing the graph? 

• The ball was kicked from 500 centimeters from the ground and it traveled for 4 seconds.

• The ball was kicked from the ground and it was in the air for 4 seconds. 

• The ball had a maximum height of 2000 centimeters and it was in the air for a total of 2 seconds. 

• The ball had a maximum height of 1000 centimeters and it was in the air for 4 seconds. 

Which of the following describes the graph of f(x)= x² - 2x -15.

• The graph has a maximum and has the x-intercepts of (-3, 0) and (5, 0)

• The graph has a minimum and has the x-intercepts of (-3, 0) and (5, 0)

• The graph has a maximum and has the x-intercepts of (3, 0) and (-5, 0)

• The graph has a minimum and has the x-intercepts of (3, 0) and (-5, 0)

Which if the following is an equation for a quadratic function that opens downward and has the vertex of (-4, 7)?

• f(x)= -(x-4)²+7

• f(x)= (x+4)²+7

• f(x)= -(x+4)²+7

• f(x)= (x-4)²+7

What is the solution set for the quadratic function? 

• {-1.4, 4.2}

• {-1.4}

• {4.2}

• {1.5}

How does the graph of g(x)=3x² compare to the quadratic parent function f(x)=x² ?

• The graph of g(x) is wider than the graph of f(x).

• The graph of g(x) is narrower than the graph of f(x).

• The graph of g(x) is translated up 3 units above f(x).

• The graph of g(x) is translated down 3 units below f(x).