# Scales-final Exam

30 Questions | Total Attempts: 68

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This is the final exam for college algebra. It is worth 20% of your grade. Please take it seriously and do your absolute best! I enjoyed having you in class. Have a great Thanksgiving and Christmas break!

Related Topics
• 1.
Please list any comments or concerns you have about the MAT142 College Agebra class or the Instructor. Constructive criticism is encouraged and accepted. This question will not reflect on your grade.
• 2.
On a scales of 1-10, how would you rate your performance in this class? This question will not reflect on your grade.
• 3.
Find the center of a circle with the following equation. x2 + 2x + y2 - 4y + 1 = 0
• A.

Center (-1, 2)

• B.

Center (2, 1)

• C.

Center (1, 2)

• D.

Center (1, -2)

• 4.
What is the center and radius of a circle with the following equation? x2 - 6x + y2 + 14y + 33 = 0
• A.

Center (-3, 7) radius = 5

• B.

Center (9, 14) radius = 25

• C.

Center (-3, -7) radius = 25

• D.

Center (3, -7) radius = 5

• 5.
Find the radius of a circle that has the following equation. x2 - 4x + y2 - 6y - 23 = 0
• A.

R = 12

• B.

R = 6

• C.

R = 36

• D.

R = 3

• 6.
Which would NOT be a coordinate on an ellipse with the following equation? (x + 2)2 + (y -1)2 = 1
• A.

(-1, 1)

• B.

(-2, 0)

• C.

(-3, 1)

• D.

(-2, 2)

• E.

(-3, -1)

• F.

None

• 7.
Which coordinate would be plotted for an ellipse with the following equation? x2 + y2 = 0
• A.

(0, 0)

• B.

(-1, -1)

• C.

(0, 1)

• D.

(2, -2)

• E.

None

• 8.
Find the equation of the line which passes through the points (- 4,- 8) and (8,1).
• A.

3y=4x-15

• B.

Y=3/4x - 5

• C.

Y = -3/4x - 11

• D.

Y - 8 = 3/4x - 4

• 9.
Find the slope of the following equation. -2y - 10 + 2x = 0 (Enter A., B., C., or D.) A.   0 B.  -1 C.  -2 D.   1 E.   2
• 10.
The equation of a line (below) has a slope (m) of what?     y = -x + 3 (Enter A., B., C., or D.) A.    1 B.   -1 C.   0 D.  -1/2
• 11.
Find the equation of the circle with center (-1, 2) and radius = 2.
• A.

Option 1

• B.

Option 1 and Option 3

• C.

Option 3

• D.

Option 2 and Option 3

• E.

None of the above

• 12.
How can you tell that the slope of a line is negative from looking at a graph?
• A.

The line will fall from bottom left to top right.

• B.

The line will fall from top left to bottom right.

• C.

The line will be vertical.

• D.

The line will be horizontal.

• 13.
Find the distance between (4, 6) and (4, 6).
• 14.
Find the slope of the following equation. -2y - 10 + 2x = 0 (Enter A., B., C., or D.) A.   0 B.  -1 C.  -2 D.   1 E.   2
• 15.
Determine the slope between the points (5, -5) and (-1, 7)
• 16.
How can you tell if the slope of a line is zero?
• A.

The line will rise from bottom left to top right.

• B.

The line will fall from top left to bottom right.

• C.

The line will be vertical.

• D.

The line will be horizontal.

• 17.
How can you tell if the slope of a line is undefined?
• A.

The line will rise from bottom left to top right

• B.

The line will fall from top left to bottom right.

• C.

The line will be vertical.

• D.

The line will be horizontal.

• 18.
How can you tell that the slope of a line is positive by looking at a graph?
• A.

The line will rise from bottom left to top right.

• B.

The line will rise from top left to bottom right.

• C.

The line will be vertical.

• D.

The line will be horizontal.

• 19.
What is the slope of the line?
• A.

0

• B.

-1

• C.

Undefined

• D.

3

• 20.
2x - y = 6 Find the y-intercept of the line.
• A.

-2

• B.

-6

• C.

6

• D.

-3

• 21.
What is the midpoint between points A and B.
• A.

-3/2

• B.

(-1, 0)

• C.

(2, 3)

• D.

(1, 0)

• E.

(-2, -3)

• 22.
The slope of a horizontal line is
• A.

Undefined

• B.

Zero

• C.

1

• D.

Positive

• E.

None of these

• 23.
A basic linear function has a single variable (x). Which graph belongs to the function below. f(x) = x     (Hint: the function is positive) A.   B. C.
• A.

The graph of the function is picture A.

• B.

The graph of the function is picture B.

• C.

The graph of the function is picture C.

• D.

None of the above

• 24.
What is the coordinate of point A?
• A.

(4,4)

• B.

(-3,-3)

• C.

(3,-6)

• D.

(5,6)

• E.

(-6,7)

• 25.
A basic Absolute Value Function has a variable surrounded by | | and the value of what is inside those bars is always positive. Which graph belongs to the function below. f(x) = |x| A. B. C.
• A.

The matching graph is picture A.

• B.

The matching graph is picture B.

• C.

The matching graph is picture C.

• D.

None of the above

• 26.
Find the midpoint between the following points.
• A.

(-5, 6)

• B.

(6, -5)

• C.

(5, 11/2)

• D.

0

• E.

(11/2, 5)

• 27.
Find the slope of the line.
• A.

0

• B.

Undefined

• C.

0/12

• D.

12/0

• 28.
A basic Square Root Function has a variable (x) with an exponent of 1/2 or a square root sign. Which graph belongs to the function below.   A. B. C.
• A.

The matching graph is picture A.

• B.

The matching graph is picture B.

• C.

The matching graph is picture C.

• D.

None of the above

• 29.
A basic quadratic function has a variable (x) with an exponent of 2. Which graph belongs to the function below? A. B. C.
• A.

The matching graph is picture A.

• B.

The matching graph is picture B.

• C.

The matching graph is picture C.

• D.

None of the above

• 30.
• A.

The y-axis

• B.

The x-axis

• C.

The origin

• D.