# 1.2 Game0105r review  (Page 2/5)

 Page 2 / 5

True or False?

## Question 18

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

True or False?

## 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?

## Question 20

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

True or False?

## 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?

## 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?

## Question 23

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

True or False?

## Question 24

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

True or False?

## 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?

## Question 26

A vector must always specify a position.

True or False?

## Question 27

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

True or False?

## Question 28

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

True or False?

## 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?

## 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?

## 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?

## 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?

## 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?

## 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?

## Question 35

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

True or False?

## 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

a diagram of an adult mosquito
what are white blood cells
white blood cell is part of the immune system. that help fight the infection.
MG
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,,,
hey guys
Isala
on what?
Anastasiya
is air homogenous or hetrogenous
homogenous
Kevin
why saying homogenous?
Isala
explain if oxygen is necessary for photosynthesis
explain if oxygen is necessary for photosynthesis
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
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
what is a cell
A cell is a basic structure and functional unit of life
Ndongya
what is biolgy
is the study of living and non living organisms
Ahmed
may u draw the female organ
i dont understand
Asal
:/
Asal
me too
DAVID
anabolism and catabolism
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 .
hi
Amargo
hi I'm Anatalia
Joy
what do you mean by pituitary gland
Digambar
draw and lable the cell
why homones are destroyed soon after completing their role
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