College Algebra MA 240 Online Exam 2

College Algebra MA 240




Online Exam 2_02
33766 Online Exam 2_02

Part 1 of 1 - Lesson 2 Questions 100.0/ 100.0 Points

Question 1 of 20
5.0/ 5.0 Points
Write an equation in general form of the line passing through (3, -5) whose slope is the negative
reciprocal (the reciprocal with the opposite sign) of –1/4.





A. 5x + y - 22 = 0





B. 4x - y - 17 = 0





C. 4x + y + 20 = 0





D. 7x - y + 34 = 0

Question 2 of 20
5.0/ 5.0 Points
Find the slope of the line passing through each pair of points or state that the slope is undefined.
Then indicate whether the line through the points rises, falls, is horizontal, or is vertical.

(5, 3) and (5, -2)

,College Algebra MA 240







A. 1; rises





B. 4/9;horizontal

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C. Undefined; vertical

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D. Undefined; falls

Question 3 of 20
5.0/ 5.0 Points

Evaluate each piecewise function at the given values of the independent variable.

3x + 5 if x < 0
f(x) =
4x + 7 if x ≥ 0

1. f(-2)
2. f(0)
3. f(3)






A. 1. -1
2. 7

, College Algebra MA 240



3. 19





B. 1. -5
2. 9
3. 19





C. 1. -1
2. 7
3. 21





D. 1. 6
2. 7
3. 19

Question 4 of 20
5.0/ 5.0 Points
Use the given conditions to write an equation for each line in general form.

Passing through (4, -7) and perpendicular to the line whose equation is x - 2y - 3 = 0.





A. 6x - y - 1 = 0





B. 4x + y + 1 = 0