Unit Test #98

Select your answers to the following 5 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

Q1:

 

The simultaneous equations:

x + y = 5

x + y = 6

are said to be:

 

A. dependent

B. consistent

C. inconsistent

D. independent

Answer 1:

 

 

Q2:

 

If a set of simultaneous equations are said to have a unique solution, how many solutions are there?

A. 0

B. 1

C. 2

D. infinite

Answer 2:

 

 

Q3:

 

What is the solution set for the simultaneous equations:

y = -3

x + y = 2?

 

A. (5, -3)

B. (-3, 5)

C. (1, 5)

D. (-1, 5)

Answer 3:

 

 

Q4:

 

The simultaneous equations

3x + 6y = 9
x + 2y = 3

are:

A. dependent

B. consistent

C. inconsistent

D. independent

Answer 4:

 

 

Q5:

 

The following simultaneous equations

x + 6y + 14z = 70

x + y + 2z = 13

x + 2y + 4z = 24

have solutions of y = 9 and z = 1. What is the value of x?

A. 1

B. 10

C. 2

D. 46

Answer 5: