CMU CS Academy Unit 3.2.1 Boolean Expressions Part 0

Boolean expression: an expression that evaluates to either true or false.

(3 > 2) is

• True

• False

Boolean expression: an expression that evaluates to either true or false.

(3 < 2) is

• True

• False

Boolean expression: an expression that evaluates to either true or false.

(3 == 2) is

• True

• False

Boolean expression: an expression that evaluates to either true or false.

(3 != 2) is

• True

• False

Boolean expression: an expression that evaluates to either true or false.

(3 >= 2) is

• True

• False

Boolean expression: an expression that evaluates to either true or false.

(3 <= 2) is

• True

• False

Boolean values are true or false. Which parameter is a boolean?

Rect(left, top, width, height, fill='black', opacity=100, visible=True)

• left

• fill

• opacity

• visible

Comparison operators: operators that compare values.

Boolean expessions contain comparison operators and return True or False.

If statements use boolean expression.

Which symbols are comparison operators?

• <= (Less than or equal to)

• >= (Greater than or equal to)

• == (Equality / Testing 2 values are equal)

• != (Inequality / Testing 2 values are not equal)

• = (In Python means setting a value)

A Boolean expression .....

• Loops the programs to continue infinitely

• Sets everything in it equal to eachother

• Checks if something is True or False

• Fixes any errors in the line of code

How many values does a Boolean variable have?

• 1

• 2

• 4

• infinite