Unit Test #99

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:

 

For the function f(x) = x2 - √x - 1 is f(1) positve or negative?

A. positive

B. negative

 

Answer 1:

 

 

Q2:

 

For the function f(x) = x2 - √x - 1 is f(2) positve or negative?

A. positive

B. negative

 

Answer 2:

 

 

Q3:

 

If the Bisection method is used to solve the equation in Question 1 using the starting interval [1,2], how wide is the interval after 4 iterations?

A. 0.25

B. 0.125

C. 0.0625

D. 0.03125

Answer 3:

 

 

Q4:

 

What is the mid-point on the x-axis between x = 1.25 and x = 1.40?

A. x = 2.65

B. x = 1.30

C. x = 1.35

D. x = 1.325

Answer 4:

 

 

Q5:

 

Which interval contains a root of the equation x3- 6 = 0?

A. [-2, -1]

B. [-1, 0]

C. [0, 1]

D. [1, 2]

Answer 5: