Pattern Rules with Variables

The video tutorial introduces variables as quantities that can change, often represented by letters. It demonstrates using variables to solve real-world problems, such as calculating the cost of cotton candy and library fines. The tutorial emphasizes creating charts to visualize patterns and using rules to simplify calculations. It concludes by encouraging viewers to create their own patterns and identify rules using variables.

What is a variable typically represented by in equations?

• Letters of the alphabet

• Numbers

• Colors

• Symbols

In the equation 2 * P - 8 = Q, which of the following are variables?

• 2 and Q

• P and Q

• P and 8

• 2 and 8

How much does it cost to buy 6 bags of cotton candy if each costs $2.00?

• $10.00

• $12.00

• $14.00

• $16.00

What is the rule to calculate the cost of cotton candy using variables?

• C = B - $2.00

• C = B + $2.00

• C = $2.00 + B

• C = $2.00 * B

If a book is returned 14 days late, how much is the fine at $0.15 per day?

• $3.00

• $2.50

• $2.10

• $1.50

What is the cost of returning a book 45 days late at a rate of $0.15 per day?

• $5.75

• $6.00

• $7.00

• $6.75

What can charts help identify when working with variables?

• Exact values

• Number patterns

• Colors

• Shapes