Chapter 2 Multiple choice questions

* not completed

. Which of the following straight lines has the steepest slope?

y = x - 5 correct incorrect

y = 3 - 2x correct incorrect

3y = 1 - x correct incorrect

2y = 3x + 7 correct incorrect

* not completed

. What is the largest possible number of turning points for an n^th-order polynomial?

n-1 correct incorrect

n correct incorrect

n+1 correct incorrect

None of the above. correct incorrect

* not completed

. If y decays exponentially with x, so that y = A e^-kx where A and k are positive constants, which of the following plots would be a straight line?

y versus x. correct incorrect

y versus ln(x). correct incorrect

ln(y) versus x. correct incorrect

ln(y) versus ln(x). correct incorrect

* not completed

. Which of the following is the equation of a circle?

x² + 2x + y² - 4y = -1 correct incorrect

x² + y² = -1 correct incorrect

x² - y² = -1 correct incorrect

x² - y² = 1 correct incorrect

* not completed

. Which of the following is not an ellipse?

x² + y² = 1 correct incorrect

2x² + 3y² = 1 correct incorrect

5x² + 2y² = 3 correct incorrect

3x² - 2y² = 1 correct incorrect