AnswersIntegrated Math I Semester 2 - LHS 2016Cumulative Exam

Cumulative Exam — Cumulative exam Answers

20 verified answers2 views
1
Free Preview

What does a residual value of 1.3 mean when referring to the line of best fit of a data set?

A
A data point is 1.3 units above the line of best fit.
B
A data point is 1.3 units below the line of best fit.
C
The line of best fit has a slope of –1.3
D
The line of best fit has a slope of 1.3.
2
Free Preview

The value of a computer depreciates with age, as shown in the table.Value of a Computer

Question illustration
A
f(t) = 1,600 – 226.16t
B
f(t) = 1,600 – 320t
C
f(t) = 1,600(0.2)t
D
f(t) = 1,600(0.8)t
3

Analyze the diagram below and answer the question that follows. Can you prove that ? Justify your answer.

Question illustration
A
Yes, the triangles are congruent by SAS.
B
Yes, the triangles are congruent by SSS.
C
Yes, the triangles are congruent by SSA.
D
No, not enough information is given.
4

A line contains the points (8, 9) and (–12, –7). Using point-slope form, write the equation of the line that is parallel to the given line and that passes through (–5, –15).A.B.C.D.

Question illustration
A
A
B
B
C
C
D
D
5

Analyze the diagram below and answer the question that follows. What is the angle of rotation from to ? Assume that the center of rotation is the origin.

Question illustration
A
90° counterclockwise
B
180° counterclockwise
C
270° counterclockwise
D
360° counterclockwise
6

If bisects and , prove . Statements Reasons 1) 1) 2) 2) 3) 3) 4) 4)

Question illustration
A
1) Reflexive property of 2) Definition of an angle bisector 3) Definition of an angle bisector 4) AAS
B
1) Definition of an angle bisector 2) Reflexive property of 3) Definition of an angle bisector 4) SSA
C
1) Reflexive property of 2) Definition of an angle bisector 3) Definition of an angle bisector 4) ASA
D
There is not enough information to prove the triangles congruent.
7

The table shows the side length and approximate area of an octagonal stop sign.Area of a Stop Sign

Question illustration
A
f(x) = 4.8x2
B
f(x) = 4x2
C
f(x) = (4.8)x
D
f(x) = (4)x
8

Which relationships could have a negative correlation? Select three options.number of hours worked and free timespeed of a car and minimum stopping distancethe speed of a train and the length of time to reach the destinationadult’s head circumference and agea tadpole’s age and the length of it’s tail

A
number of hours worked and free time
B
speed of a car and minimum stopping distance
C
the speed of a train and the length of time to reach the destination
D
adult’s head circumference and age
E
a tadpole’s age and the length of it’s tail
9

Which sample fairly represents the population? Select two options.using a yearbook to determine the most popular names for girls in the United Statesasking the people exiting a vitamin store how often they exercise to determine the amount of time the average American exercisescalling every registered member of the national Republican Party to determine the voter turnout for a city’s mayoral racesending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfactiontaking a poll in the main hallway between classes to determine the number of students who would be interested in a school trip to New York City

A
using a yearbook to determine the most popular names for girls in the United States
B
asking the people exiting a vitamin store how often they exercise to determine the amount of time the average American exercises
C
calling every registered member of the national Republican Party to determine the voter turnout for a city’s mayoral race
D
sending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfaction
E
taking a poll in the main hallway between classes to determine the number of students who would be interested in a school trip to New York City
10

Determine the length and midpoint of the segment whose endpoints are (–15, 9) and (–4, 11).

A
length = 11.18, midpoint = (–5.5, 1)
B
length = 11.18, midpoint = (–9.5, 10)
C
length = 26.17, midpoint = (–5.5, 1)
D
length = 26.17, midpoint = (–9.5, 10)
11

The data set represents the number of rings each person in a room is wearing.0, 2, 4, 0, 2, 3, 2, 8, 6What is the interquartile range of the data?

A
2
B
3
C
4
D
6
12

Mr. Walker is looking at the fundraiser totals for the last five years.

Question illustration
A
The median is $1.60 greater than the mean.
B
The mean is $1.60 greater than the median.
C
The median is $2.82 greater than the mean.
D
The mean is $2.82 greater than the median.
13

Maria gathered the data in the table. She finds the line of best fit to be y = 2.78x – 4.4.

Question illustration
A
–6.72
B
–0.58
C
0.58
D
6.72
14

Analyze the diagram below and answer the question that follows. What is the angle of rotation from figure D to figure D’? Assume that the center of rotation is the origin.

Question illustration
A
270° clockwise
B
90° clockwise
C
90° counterclockwise
D
180° counterclockwise
15

Analyze the diagram below and complete the instructions that follow. If , , and , find the value of x.

Question illustration
A
12.5
B
30
C
42.5
D
50
16

Analyze the diagram below and answer the question that follows. Given that , , and , which congruence statement is true? A. B. C. D. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
17

Analyze the diagram below and answer the question that follows. Is it possible to show that is congruent to ?

Question illustration
A
Yes; by the angle addition postulate, and by the symmetric property of congruence, so by SAS. Therefore, by CPCTC.
B
Yes; by the segment addition postulate, and by the reflexive property of congruence, so by SAS. Therefore, by CPCTC.
C
No; we cannot prove that , so we cannot use CPCTC to show that .
D
No; , but is not a corresponding angle to , so they cannot be proven congruent by CPCTC.
18

Quadrilateral has vertices , , and . Determine if quadrilateral is a parallelogram.

Question illustration
A
No, quadrilateral is not a parallelogram. The opposite sides are not parallel.
B
Yes, quadrilateral is a parallelogram because there are two pairs of perpendicular lines.
C
Yes, quadrilateral is a parallelogram because both pairs of opposites sides are parallel.
D
There is not enough information to determine.
19

Analyze the diagram below and complete the instructions that follow. Determine which type of transformation is illustrated in the figure.

Question illustration
A
composition
B
dilation
C
reflection
D
translation
20

Analyze the diagram below and complete the instructions that follow. Given: The diagram above; , , and all bisect each other at Prove: . Statements Reasons 1) ; , , and all bisect each other at ; and are right angles 1) 2) , , and 2) 3) 3) 4) and are right triangles 4) 5) 5)

Question illustration
A
1) Given 2) Definition of bisector 3) Transitive property of congruence 4) Definition of a right triangle 5) HL theorem
B
1) Given 2) Given 3) Transitive property of congruence 4) Definition of a right triangle 5) HL theorem
C
1) Given 2) Definition of bisector 3) Reflexive property of congruence 4) Definition of a right triangle 5) HL theorem
D
There is not enough information to prove the triangles congruent.

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Introduction to Transformations

Quiz
10 verified answers

Rotations

Quiz
10 verified answers

Rotations