Its an exam prep need answers for the assignment. The questions in the document note the requirement.

NAME_______________________

PONTS = 100

SCORE____________

MTH 12-A

FINAL EXAM

24 – 27 SEPTEMBER 2020

READ ALL BELOW PRIOR TO OPENING THE EXAM!

1. SUBMIT THIS EXAM TO UPLOAD WITHIN BLACKBOARD AND FORWARD A DUPLICATE

COPY TO THE INSTRUCTOR’S EMAIL ADDRESS hmac771@yahoo.com.

2. ALL EXAMS ARE DUE TO THE INSTRUCTOR NO LATER THAN 11:30 P.M. SUNDAY, 27

SEPTEMBER 2020.

3. STUDENTS ARE TO INVOKE THE NATIONAL UNIVERSITY HONOR CODE SYSTEM BY

INDEPENDENTLY SOLVING THE ENCLOSED QUESTIONS AND PROBLEMS.

4. PARTIAL CREDIT SHALL BE AWARDED FOR THOSE QUESTIONS REQUIRED TO “SHOW

WORK” IF THE FINAL ANSWER IS NOT OPTIMUM.

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I. ( 1 POINT EACH) TRUE FALSE. WRITE IN THE BLANK SPACE PROVIDED, THE COMPLETE

SELECTED WORD, TRUE OR FALSE.

True / False

1. An obtuse angle is greater than ninety degrees and less than one

hundred eighty degrees.

_______

2. For two intersecting lines, adjacent angles are on a common side of

the intersection and their sum equals one-hundred eighty degrees.

_______

3. On either side of the transversal for two parallel lines, alternate

exterior angles are equal.

_______

4. The function of the domain value determines the range value.

_______

5. A scatter plot is utilized to determine whether variables have a linear

relationship.

_______

6. Correlation describes the direction and magnitude between variables. _______

7. Within a scatter plot, variable magnitude (strong or weak) may be

determined by the close or distant proximity of the variables ordered

pair to the linear representation.

_______

8. Computing a student’s test scores for 3 tests during the first 45 days

of the semester followed by computing that same student’s test

scores for the second 45 days of the semester yields the average rate

of change of that student’s Test score performance.

_______

9. Slope measures the steepness or slant of a line.

_______

10. Rate of change is illustrated by x2 – x1

Y2 – y1 .

_______

11. Within a planar surface, a line 1 has a slope m = -1/2. A line 2 has a

slope m = 1. Therefore these lines are perpendicular to each other.

_______

12. Lines, which possess equal slopes (m), are parallel lines.

_______

13. A line is computed to be x = -3. This is a vertical line with a slope of 1.

_______

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14. A “function” is a set of ordered pairs where no two ordered pairs have

the same first coordinate.

_______

15. A “relation” of a set of ordered pairs exist when the first coordinate,

the x value, is the same for ordered pairs in the set with different y values. _______

II. PROBLEMS

1. (5 POINTS) Given below lines L1 and L2 are straight and parallel.

Angle

= 115 degrees.

*THEREFORE ANSWERS FOR: Angle β = ____ Angle E =____ Angle K =______

Show work below or give explanation for each answer.

β

L1

E

Ω

L2

K

OPTIONAL: Show Work or Explanations here for your above answers :

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2. ( 5 POINTS) BELOW, a Right Triangle , has angle E = 35 degrees.

HOW MANY DEGREES IN

Angle G? Angle H? Angle K?

Show work or give explanations for your answers below.

E

K

WORK OR EXPLANATIONS HERE:

G____________________________

H

H____________________________

K____________________________

G

ANSWER, ANGLES

G = _____ H =________ K=_________

______________________________________________________________________________

(5 POINTS)

3. Solve for X degrees AND solve

for angle Z

ANGLE R

250

GIVEN: ANGLE R = 250

ANGLE Z

X + 20 0

ANGLE Z = X + 200

SHOW YOUR WORK OR GIVE EXPLANATIONS HERE.

ANSWER ANGLES X =______________ Z = _________

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4. (5 POINTS) On September 10, mid-state New Hampshire, the temperature at 6

a.m. was 45 degrees. At 2 p.m., on the same day, the temperature was 77

degrees. Find the average rate of change in temperature per hour.

Show work and explanations here.

Answer_____________________

5. ( 15 POINTS) Given: the standard form linear equation 2x + 3y = 6.

A.)

x

Use the below matrix. Using the standard form equation, solve and

annotate the x and y intercepts. Then solve for one additional point

2x + 3y = 6

y

Show work here for Y intercept

Show work for x intercept here

ANSWERS

X NTERCEPT=_________

Show work for selected x value here

Y INTERCEPT =________

B.) Use the data in the above matrix to compute the slope m =

Show work here.

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Y2 – Y1

X2 – X1

ANSWER M = _________

C.)

Convert 2x + 3y = 6 to the slope intercept form. Show work here

WRITE THE CALCULATED SLOPE INTERCEPT FORM EQUATION_________________

WRITE THE SLOPE _m =________

WRITE THE Y INTERCEPT__(___,___)

D. GRAPH THE EQUATION. Ensure the slope, x & y intercepts, x & y axis, third

selected ordered pair point, the correct linear representation is present with affixed equation

appear on your graph.

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6. (5 POINTS) A.) Find the slope intercept equation of the line which passes

through the TWO POINTS, (5, -1) and (-5, 11). Show work here.

ANSWER THE SLOPE INTERCEPT EQUATION____________________

B.) Perform a check with both sets of ordered pair to determine if this is the

correct equation.

Perform Check For (5, -1) here

Perform Check for (-5, 11) here

ANSWER _______________

ANSWER______________

WRITE YOUR CONCLUSION_________________________________________________

7. ( 10 POINTS) A.) Determine if these two lines are Parallel? Show all work.

LINE 1 L1

P1 ( -2, 1 )

P2 ( -5, -1 )

LINE 2 L2

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P1 ( 1, 0 )

P2 ( 4, 2 )

B.)

GRAPH THESE TWO LINES .

8. (5 POINTS) Given the Points:

P1 ( -4, 2 ) P2 ( 3, 2 ).

CIRCLE THE BELOW CORRECT ANSWER OR ANSWERS: CIRCLE THE LETTER AND

STATEMENT.

GIVE SHORT EXPLANATION FOR YOUR ANSWER OR SHOW WORK

-a. The slope is undefined

-b. The slope is equal to zero

-c. The line is horizontal to the x axis

-d. The line is vertical to the y axis

9. (5 POINTS) Is the line containing the points (5, -2) and (-1, 3) perpendicular to

the line that contains the points (3, 4) and (-2, -2)? Show all work.

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10. (5 POINTS) Does the graph X = 4 represent a slope of 0? Explain your answer.

11. ( 5 POINTS ) Given the following relation { (-4, 4), (-2, 2), (0, 0), (-2, -2) }

A.) Identify the set of Domain Values {

}

B.) Identify the set of Range Values {

}

C.) Is this relation a Function? _______________yes or no Explain your answer here.

12. ( 5 POINTS ) Given the following relation { (-4, 4 ), (-2, 2), (0, 0), (-2, -2) }

A.) Identify the set of Domain Values {

}

B.) Identify the set of Range Values {

}

C.) Is this relation a function? ___________yes or no Explain your answer here.

13. ( 10 POINTS )Given : f(X) = 1 x + 3. The domain is { -4, -2, 0, 2, 4 }

2

A.) Calculate the Range. Show work by using the scheme shown below.

f(x) = 1 x + 3

2

f(x) =

f(x) =

f(x) =

f(x) =

f(x) =

B.) The set of Range Values is (

}

C.) The Relation is {

}

D.) IS THIS RELATION A FUNCTION? YES OR NO. EXPLAIN WHY OR WHY NOT?

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FOR THE ABOVE PROBLEM GRAPH YOUR RELATION HERE

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