Unit Test #20

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:
What is the axis of symmetry of the graph of
y = x² - 8x + 12?
A. x = 2
B. x = 4
C. x = 6
D. x = 8

Answer 1:

 

 

Q2:

In the figure below the graph could represent:

A. y = -(x - 2)2 + 1
B. y = -(x - 1)2 + 2
C. y = (x - 2)2 + 1
D. y = -(x + 2)2 + 1

Answer 2:

 

 

Q3:
Which of the following functions would nothave a parabola for its graph? A. y + 9 = (x - 3)2
B. y = (x -3)(x +3)
C. y = x(4 - x)
D. y2 + x= 9

Answer 3:

 

 

Q4:
Which function has a graph which is an inverted
(upside down ) parabola?  
A. y = 1 + x
B. y = 1 - x2
C. y = x-1
D. -y = 1 - x2

Answer 4:

 

 

Q5:
The graph of y = x2 - 8x + 12 has x-intercepts of A. 6 and 2
B. -6 and -2
C. 6 and -2
D. -6 and 2

Answer 5:

 

 

Q6:
The graph of y = x2 - 8x + 12 has a y-intercept of 
 
A. 2
B. -8
C. 12
D. 6

Answer 6:

 

 

Q7:
Which point lies on the parabola y = 2(x + 3)(x - 2)? A. (2, 0)
B. (2, 10)
C. (2, 20)
D. (2, 8)

Answer 7:

 

 

Q8:
How many x-intercepts has the graph of y = x- 3x + 6? A. 2
B. 1
C. 0
D. 3

Answer 8:

 

 

Q9:
Which of the following functions has a parabola for its graph?
 
A. y + 2x = 1
B. y = 2x + 5
C. y = 2x2 - 6x
D. y= - 2x2 + 6

Answer 9:

 

 

Q10:
The lowest point on the graph of the parabola y = xis called the: A. asymptote
B. turning point
C. axis of symmetry
D. centre of rotation

Answer 10: