Writing Equations from Tables and Graphs

Mrs. Huntley presents Lesson 4 from the functions packet, focusing on writing equations from tables and graphs. The lesson revisits concepts like slope and y-intercept, providing methods to calculate them. Real-world examples, such as movie expenses and baking recipes, are used to illustrate these concepts. Students are encouraged to practice and seek help if needed, as these are essential skills for high school algebra.

What is the essential question for this lesson?

• What is the Pythagorean theorem?

• How do I write an equation from a table or graph?

• How do I solve quadratic equations?

• How do I find the area of a circle?

In the slope-intercept form y = mx + b, what does 'm' represent?

• The x-intercept

• The y-intercept

• The constant term

• The slope

Which method is NOT used to find the slope from a table?

• Slope formula

• Larkin L

• Change in Y over Change in X

• Pythagorean theorem

In the movie expenses example, what is the y-intercept?

• $3.75

• $10.00

• $6.25

• $13.75

What does the slope represent in the movie expenses example?

• Number of drinks

• Total cost

• Cost of popcorn

• Cost of each drink

In Buddy's Bakery example, what is the ratio of brown sugar to butter?

• 3:4

• 3:2

• 4:3

• 2:3

In the plane's fuel usage example, what is the slope?

• 0

• 30

• 156

• 5.2

In the bowling example, what is the y-intercept?

• $4.50

• $9.00

• $12.00

• $6.00

What does the slope represent in the bowling example?

• Cost of shoe rental

• Cost per game

• Total cost

• Number of games

What are the two key pieces of information needed to write an equation in slope-intercept form?

• Slope and x-intercept

• Rate of change and constant term

• Slope and y-intercept

• Y-intercept and x-intercept