Mastering Adding and Subtracting Rational Expressions

What is the main focus of the video?

• The use of graphing calculators

• Advanced calculus

• The steepness of a line

• The history of graphing

What is a rate of change?

• A mathematical constant

• A type of graph

• A ratio showing how one variable changes with respect to another

• A measure of how fast a car moves

How is slope written?

• As a product of two numbers

• As a difference of two numbers

• As a sum of two numbers

• As a ratio of vertical change to horizontal change

What is the variable used to express slope?

• L

• N

• S

• M

What type of slope does a line have if it is increasing?

• Negative slope

• Undefined slope

• Zero slope

• Positive slope

What type of slope does a horizontal line have?

• Zero slope

• Negative slope

• Positive slope

• Undefined slope

What type of slope does a vertical line have?

• Positive slope

• Zero slope

• Undefined slope

• Negative slope

In the example given, what is the slope of a line that rises 4 units and runs 5 units?

• 5/4

• 4/5

• 1/5

• 5/1

How do you simplify the fraction -2/6?

• -1/3

• -2/3

• 1/3

• 2/3

What is the punchline of the snowman joke?

• He rides a bicycle

• He rides an icicle

• He slides on ice

• He skates