Modeling Linear Equations

In the equation y=mx+b, what does the m represent?

• rate of change (slope)

• y-intercept
• linear
• point-slope

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What does 'b" represent in y=mx+b

• initial value (y-intercept)

• an ordered pair

• nothing
• rate of change (slope)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Jacob is looking for a job delivering pizzas. Tino’s Pizza is offering Jacob $25 base pay and then $3 per pizza that he delivers. What would x and y represent in this situation?

• X: Total Money Made

  Y: Number of Pizzas

• X: Number of Pizzas

  Y: Total Money Made

• Variables should be numbers and not words.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Ms. Deppe has $150 in her savings account and saves $40 per month. Which equation represents the amount of money (y) Ms. Deppe has in her account as a function of (x) number of months?

• y=150+40

• y=150x+40

• y=40x+150

Tags

CCSS.HSF-BF.A.1A

At the beginning of the summer, Jenna had saved $141. She will earn $32 per day of summer work. Which of the following equations represents how much money she will have, in all, if she spends nothing all summer as a function of the number of days she worked?

• y = 141-32x

• y = x + 141

• y = 32x + 141

• y = 141x + 32

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Kiki wants to rent a bounce house for her daughter's party.  The cost, y, to rent the bounce house as a function of the number of hours, x, is shown in the table.  The initial set up fee for the bounce house is which of the following?

• $65

• $55

• $130

• $185

Tags

CCSS.HSF.LE.B.5

Kiki wants to rent a bounce house for her daughter's party.  The cost, y, to rent the bounce house as a function of the number of hours, x, is shown in the table.  The rate per hour for the bounce house is which of the following?

• $65

• $55

• $130

• $185

Tags

CCSS.HSF-LE.A.1B

A restaurant investigated the correlation between the prices and the number of customers.  The linear model below represents this situation, where x is the average meal price (in dollars), and y is the number of daily customers.  Interpret the slope. y = - 18x + 437

• The average price per meal is $18.

• The average number of daily customers is 18.

• If the average meal price decreases by a dollar, the number of daily customers decreases by 18.

• If the average meal price increases by $1, the number of daily customers decreases by 18.

Tags

CCSS.HSF.LE.B.5

Dominoes charges $6 per pizza. The delivery fee is $4. Write an equation to model this situation.

• y = -4x+6

• y = 6x+4

• y = 1/6x-4

• y = 64x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Staples charges $4 per pack of pens. They also charge a $7 shipping fee. Write an equation to model this situation.

• y = 4x+7

• y = 4x-7

• y = 7x-4

• y = 28x

Tags

CCSS.6.EE.C.9