Coffee Costs and Linear Equations

Mr. Beeney introduces lesson 5.1 on writing linear equations from situations and graphs. The lesson explores constructing functions from descriptions, analyzing costs, and writing equations using slope-intercept form. Examples include Greta's monthly costs and Harry's allowance problem. The lesson concludes with a summary of key points.

What is the primary focus of lesson 5.1?

• Writing quadratic equations

• Writing linear equations

• Solving inequalities

• Graphing parabolas

What is the fixed monthly fee Greta pays at the pottery studio?

• $15

• $10

• $25

• $20

How much does Greta pay per hour for using the equipment?

• $2

• $3

• $5

• $4

In May, Greta spends 8 hours at the studio. What is her total cost?

• $50

• $24

• $39

• $48

What is the slope of the equation representing Greta's costs?

• 3

• 2

• 5

• 4

What is the initial value of the coffee gift card?

• $20

• $35

• $25

• $30

How much is subtracted from the gift card for each coffee purchased?

• $3.00

• $1.50

• $2.00

• $2.50

What is Harry's allowance when he completes 12 chores?

• $18

• $14

• $12

• $16

What is the slope of the equation for Harry's allowance based on chores?

• 1/3

• 3/4

• 1/2

• 2/3

What is the y-intercept of the equation for Harry's allowance?

• 12

• 14

• 8

• 10