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True or False?

Answer 17

Question 18

The class named Graphics2D is a superclass of the class named Graphics .

True or False?

Answer 18

Question 19

Translating the origin from the default position at the upper-left corner of a Canvas object to the center of the Canvas object is equivalent to creating a new coordinate frame as explained by Kjell.

True or False?

Answer 19

Question 20

The default direction for increasing vertical coordinate values in a Canvas object is down the screen.

True or False?

Answer 20

Question 21

The default direction for increasing horizontal coordinate values in a Canvas object is from right to left across the screen.

True or False?

Answer 21

Question 22

According to Kjell, a line drawn on the screen using an object of the Line2D.Double class is a true line segment.

True or False?

Answer 22

Question 23

Objects instantiated from the classes named Point2D.Double and Line2D.Double are well suited for inclusion in mathematical operations.

True or False?

Answer 23

Question 24

Creation of 2D and 3D graphics requires that you always display the points.

True or False?

Answer 24

Question 25

A vector is a geometrical object that has two properties: length and direction." He also tells us, "A vector does not have a position.

True or False?

Answer 25

Question 26

A vector must always specify a position.

True or False?

Answer 26

Question 27

Three real numbers are required to represent a vector in a 2D system.

True or False?

Answer 27

Question 28

A column matrix can be used to represent a point and can also be used to represent a vector.

True or False?

Answer 28

Question 29

Different column matrices can be used to represent the same vector in different reference frames, in which case, the contents of the matrices will bedifferent.

True or False?

Answer 29

Question 30

The two (or three) real number values contained in a column matrix to represent a point specify an absolute location in space relative to the currentcoordinate frame.

True or False?

Answer 30

Question 31

The two (or three) real number values contained in a column matrix to represent a vector (in 2D or 3D) specify a displacement of a specific distance from an arbitrary point in an arbitrary direction.

True or False?

Answer 31

Question 32

With regard to a vector, in 2D, the two values contained in a column matrix represent the displacements along three orthogonal axes.

True or False?

Answer 32

Question 33

In the case of 2D, the length of the vector is the length of the hypotenuse of a right triangle formed by the x and y displacement values.

True or False?

Answer 33

Question 34

In 2D, the direction of a vector can be determined from the angle formed by the x-displacement and the line segment that represents the hypotenuse of aright triangle formed by the x, y, and z displacements.

True or False?

Answer 34

Question 35

A point is an absolute location , but a vector is a displacement .

True or False?

Answer 35

Question 36

This program instantiates objects from the following non-static top-level classes belonging to the class named GM2D01 :

  • GM2D01.ColMatrix
  • GM2D01.Line
  • GM2D01.Point
  • GM2D01.Vector

Questions & Answers

a diagram of an adult mosquito
mubarak Reply
what are white blood cells
Mlungisi Reply
white blood cell is part of the immune system. that help fight the infection.
MG
what about tissue celss
Mlungisi
Cells with a similar function, form a tissue. For example the nervous tissue is composed by cells:neurons and glia cells. Muscle tissue, is composed by different cells.
Anastasiya
I need further explanation coz celewi anything guys,,,
Calvin Reply
hey guys
Isala
on what?
Anastasiya
is air homogenous or hetrogenous
damiane Reply
homogenous
Kevin
why saying homogenous?
Isala
explain if oxygen is necessary for photosynthesis
Allice Reply
explain if oxygen is necessary for photosynthesis
Allice Reply
Yes, the plant does need oxygen. The plant uses oxygen, water, light, and produced food. The plant use process called photosynthesis.
MG
By using the energy of sunlight, plants convert carbon dioxide and water into carbohydrates and oxygen by photosynthesis. This happens during the day and sunlight is needed.
NOBLE
no. it s a product of the process
Anastasiya
yet still is it needed?
NOBLE
no. The reaction is: 6CO2+6H20+ solar energy =C6H12O6(glucose)+602. The plant requires Carbon dioxyde, light, and water Only, and produces glucose and oxygen( which is a waste).
Anastasiya
what was the question
NOBLE Reply
joining
Godfrey
the specific one
NOBLE
the study of non and living organism is called.
Godfrey
Is call biology
Alohan
yeah
NOBLE
yes
Usher
what Is ecology
Musonda Reply
what is a cell
Emmanuel Reply
A cell is a basic structure and functional unit of life
Ndongya
what is biolgy
Hawwi Reply
is the study of living and non living organisms
Ahmed
may u draw the female organ
MARTIN Reply
i dont understand
Asal
:/
Asal
me too
DAVID
anabolism and catabolism
Sani Reply
Anabolism refers to the process in methabolism in which complex molecules are formed "built" and requires energy to happen. Catabolism is the opposite process: complex molecules are deconstructed releasing energy, such as during glicolysis.
Anastasiya
Explain briefly independent assortment gene .
Otu Reply
hi
Amargo
hi I'm Anatalia
Joy
what do you mean by pituitary gland
Digambar
draw and lable the cell
Ameh Reply
why homones are destroyed soon after completing their role
Nyirenda Reply
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Source:  OpenStax, Game 2302 - mathematical applications for game development. OpenStax CNX. Jan 09, 2016 Download for free at https://legacy.cnx.org/content/col11450/1.33
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