7.QZ - P5 JS Colors & Shapes Review

Front

What does the number 100 represent in this command? ellipse (100, 20, 50, 90)

Back

x-position

Answer explanation

In the command ellipse(100, 20, 50, 90), the number 100 represents the x-position of the ellipse's center. The first parameter always indicates the horizontal position, making it the correct choice.

Front

Which command colors the background of your canvas?

Back

background( ... )

Answer explanation

The command background( ... ) is used to set the color of the canvas's background. Other commands like stroke( ... ) and fill( ... ) affect the outline and fill color of shapes, not the canvas background.

Front

What color intensity does 100 represent? fill(100,150,75)

Back

Red

Answer explanation

In the fill(100,150,75) function, the first parameter represents the red color intensity. Therefore, 100 corresponds to the intensity of red, making 'Red' the correct answer.

Front

What does the number 100 represent in this command? ellipse (20, 50, 90, 100)

Back

height

Answer explanation

In the command ellipse(20, 50, 90, 100), the number 100 represents the height of the ellipse. The parameters are x-position, y-position, width, and height, respectively, making 100 the height.

Front

Which command sets the color for the outline of a shape?

Back

stroke( ... )

Answer explanation

The command 'stroke( ... )' is used to set the color of the outline of a shape in graphics programming. In contrast, 'fill( ... )' sets the interior color, while 'background( ... )' and 'color( ... )' do not affect outlines.

Front

Which one of the following symbols is used for JavaScript comments? \ ^ ? //

Back

//

Answer explanation

In JavaScript, single-line comments are indicated by the symbol '//'. This allows developers to add notes or disable code without affecting the execution of the program.

Front

What does the number 100 represent in this command? ellipse (20, 50, 100, 90)

Back

width

Answer explanation

In the command ellipse(20, 50, 100, 90), the number 100 represents the width of the ellipse. The parameters are defined as x-position, y-position, width, and height, respectively.

Front

What command draws a line? Options: stroke (200, 220, 275, 220);, line (200, 220, 275, 220);, horizontal (200, 220, 60, 75);, pencil (200, 220, 275, 220);

Back

line (200, 220, 275, 220);

Answer explanation

The command 'line(200, 220, 275, 220);' is specifically designed to draw a line between the coordinates (200, 220) and (275, 220). The other options do not represent valid commands for drawing a line.

Front

What should be at the end of a line of code in javaScript?

Back

;

Answer explanation

In JavaScript, statements typically end with a semicolon (;). This indicates the end of a statement, making the code clearer and preventing potential errors during execution.

Front

What color intensity does 100 represent? fill(120, 100, 150)

Back

Green

Answer explanation

In the fill function fill(120, 100, 150), the second parameter (100) represents the intensity of green. Therefore, 100 corresponds to the color intensity of Green.