Writing Equations from Tables: A Math Challenge

Mr. Bell's math tutorial focuses on writing equations using tables to show relationships between variables. The video covers expressing Y in terms of X, identifying patterns in tables, and solving word problems. Students learn to derive equations from tables and apply them to real-world scenarios, such as calculating the cost of downloading songs.

What is the essential question of the lesson?

• How to find the area of a circle

• How to solve quadratic equations

• How to use an equation to show the relationship between two variables

• How to graph linear equations

What does it mean to write an equation that expresses Y in terms of X?

• Y and X are independent

• Y is a function of X

• Y is always greater than X

• X is a function of Y

In the example given, what is the equation that expresses Y in terms of X?

• Y = X + 3

• Y = X - 3

• Y = X / 3

• Y = 3X

What is the pattern identified in the table where each Y value is 0.5 times the corresponding X value?

• Y = X + 0.5

• Y = 2X

• Y = X - 0.5

• Y = 0.5X

What is the equation derived from the pattern where each Y value is three more than the corresponding X value?

• Y = X - 3

• Y = X / 3

• Y = X + 3

• Y = 3X

How much does it cost to download one digital song?

• $2.70

• $2.00

• $1.35

• $1.00

If 5 digital songs cost $6.75, how much do 10 digital songs cost?

• $20.00

• $13.50

• $10.00

• $15.00

What is the equation to find the total cost (Y) of downloading N digital songs?

• Y = N - 1.35

• Y = 1.35N

• Y = 1.35 + N

• Y = N / 1.35

Using the equation Y = 1.35N, what is the total cost to download 25 songs?

• $30.00

• $35.00

• $37.50

• $33.75

What is the first step in solving a word problem involving equations?

• Identify the pattern

• Ignore the problem

• Use a calculator

• Guess the answer