Linear functions

1. A.CED.2 A school club visits a science museum. Student tickets cost $5 each. Non-student tickets cost $10 each. The club paid $250 for the tickets. Which equation below could not model this situation?

• y= 25 - 1/2x

• 5x + 10y = 250

• y = 10 ( 25 - 1/2x)

• x + 2y =50

Tags

CCSS.6.EE.C.9

2. F.IF.5 A football stadium is capable of seating a maximum of m fans. For each game, the amount of money that the stadium brings in as revenue is a function of the number of people, n, in attendance. If each ticket costs $30.00, what is the domain of this function?

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3. S.ID.7 The linear equation c = 0.1998s + 76.4520 models the number of calories c in a beef hot dog as a function of the amount of sodium s, in milligrams, in the hot dog. What is the slope, and what does it mean in context?

• A. The slope is 0.1998. The number of calories is increased by 0.1998 for each 1 milligram increase in sodium.

• B. The slope is 0.1998. The amount of sodium, in milligrams, is increased by 0.1699 for each increase of 1 calorie.

• C. The slope is 76.4520. This is the number of calories in a beef hot dog with no sodium.

• D. The slope is 76.4520. This is the amount of sodium, in milligrams, in a beef hot dog with no calories.

Tags

CCSS.HSF.LE.B.5

4. S.ID.6 The table below shows the average annual salary of the workers at the Pearson Corporation over the course of time since 1980. Let x represent the number of years since 1980 with x = 0 representing the year 1980. Let y represent the average annual salary of the workers. Complete the slope-intercept form of the equation for the line of best fit below with the appropriate value for the slope.

Write equation to represent the cost function and revenue function for this business.

Tags

CCSS.8.EE.B.5