4-2 Slope-Intercept Word Problems

Write the equation that represents this word problem:

Marsha gets a job that pays $15 per hour, and she started the week with $20

• y= 15x + 20

• y= 20x + 15

• y= 15 + 20

• y= 20 + 15

• Answer Not Here

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

Write the equation that represents this word problem:

Nora owes her parents $400 for a computer, so she babysits for $10 per hour.

• y= 10x + 400

• y= -10x - 400

• y=10x - 400

• y= -10x + 400

• Answer Not Here

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Which of the following situations could be descried by the equation y=120-25x?

• There are 120 people in the football stadium, and 25 more are entering each hour.
• A plumber charges $25 for a house call and $120 per hour.
• A teacher has 120 students. Her third period has 25 students
• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSS.ID.C.7

The equation below represents an elevator's height after an amount of seconds. Using this equation, what should the height of the elevator be after 14 seconds?
h(s) = -3.8s + 290

• 80
• 236.8
• -80
• 72.6

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

The amount of water in the bucket ( in pints) can be modeled by the equation V(n) = 2n + 7 where n is the number of pitchers used to put water in the bucket.  If the bucket contains 29 pints of water, how many pitchers of water were used to fill it?

• 11
• 65
• 9
• 18

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

The commission of a sales representative can be modeled by C(x) = 4n - 10, where n is the number of items sold.  If the sales representative sales 30 items, how much commission will they earn?

• $20
• $120
• $5
• $110

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

R(n)=125 + 80n models the amount of money R(n) in the register after selling n tickets. How many tickets must be sold to have $18,445 in the register? 

• 233
• 92
• 229
• 119

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Each day, a local dog shelter spends an average of $2.40 on food per dog. The manager estimates the shelter’s daily expenses, assuming there is at least one dog in the shelter, using the function E(x) = 30 + 2.40x

Which statements regarding the function E(x) are correct?

I. x represents the number of dogs at the shelter per day.

II. x represents the number of volunteers at the shelter per day.

III. 30 represents the shelter’s total expenses per day.

IV. 30 represents the shelter’s nonfood expenses per day

• I and III

• I and IV

• II and III

• II and IV

Tags

CCSS.HSA.SSE.A.1

The function f(x)=2x+8 models the total cost to order x amount of light bulbs from an online company. What is the appropriate domain of the function?

• All non-negative integers
• All non-negative rational numbers
• All integers
• All rational numbers

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.5

A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change? 

• 200
• 150
• 300
• 75

Tags

CCSS.HSF.IF.B.6

CCSS.HSS.ID.C.7