MAT/222 MAT222 MAT 222 WEEK 4 QUIZ

MAT 222 WEEK 4 QUIZ

Question 1

1 / 1 pts

In the video, Example 15, Graphing parabolas, which is located in the media section of Chapter 10, the presenter recommends looking at the graph from _______ to _______ to establish the domain.

  

top to bottom

 

  

bottom to top

 

Correct!

  

left to right

 

  

right to left

 

 

Question 2

0 / 1 pts

In the video, Example 7, Using the quadratic formula: Integer coefficients,which is located in the media section of Chapter 10, the presenter solves the quadratic formula resulting in these two solutions:

  

z = 3/2 and z = 1/3
 

  

z = 3/2 and z = –1/3

 

You Answered

  

z = –3/2 and z = –1/3

 

  

z = –3/2 and z = 1/3

 

 

Question 3

1 / 1 pts

In the video, Example 7, Using the quadratic formula: Integer coefficients, which is located in the media section of Chapter 10, the a, b, and c values listed are:

Correct!

  

a = 6, b = –7, c = –3

 

  

a = 6, b = –7, c = 3

 

  

a = –6, b = –7, c = –3

 

  

a = 6, b = 7, c = –3

 

 

Question 4

1 / 1 pts

In the video, Example 7, Using the quadratic formula: Integer coefficients,which is located in the media section of Chapter 10, the presenter multiplies the entire equation in standard form by –1 in order to

  

take the equation out of standard form

 

  

turn all coefficients negative

 

Correct!

  

make the leading coefficient a positive number

 

  

eliminate all negative terms

 

 

Question 5

1 / 1 pts

In the video, Example 25, Using the quadratic formula: Fractional coefficients, which is located in the media section of Chapter 10, the presenter clears the fraction by multiplying each term by:

  

multiplying the entire equation by the LCD of –4

 

  

multiplying the entire equation by the LCD of 4

 

  

multiplying the entire equation by the LCD of –2

 

Correct!

  

multiplying the entire equation by the LCD of 2