Writing Equations from Word Problems

The video tutorial introduces linear equations, explaining their basic concepts and how they represent lines. It guides students through identifying variables, constants, and rates of change in word problems. The tutorial includes practice problems to apply these concepts and concludes with a review and homework instructions.

What is the root word of 'linear'?

• Square

• Circle

• Line

• Triangle

What is the first step in building a linear equation?

• Identify constants

• Identify variables

• Identify rates of change

• Identify the end result

In the example problem, what does the variable 'W' represent?

• Rate of change

• Total cost

• Number of weeks

• Enrollment fee

What is the constant in the first example problem?

• Number of weeks

• Total cost

• $75 enrollment fee

• $100 per week

How do you attach a unit rate to a variable?

• Division

• Multiplication

• Subtraction

• Addition

In the second example, what is the rate of change?

• $75

• $40

• $100

• $110

What variables are used in the movie theater example?

• X and Y

• W and T

• A and B

• P and S

What is the end result in the movie theater example?

• Number of friends

• Amount of money

• Total cost

• Number of snacks

What operation is used to combine the costs of popcorn and soda in the movie theater example?

• Subtraction

• Multiplication

• Addition

• Division

In the practice problem, how much more money does Alex need to buy the stereo?

• $36

• $11

• $13

• $24