Slope and Y-Intercept Word Problems

Alex has $150 in his bank account. Each week he is going to add $15 that he earns for babysitting his sister. The slope in this story is

• -150

• -15

• 15

• 150

Mrs. Hartshorn uses the formula y = -3x + 27 to keep track of how much money she has in her coffee fund each day (she buys one coffee each day). x is the number of days and y is the amount of money in her coffee account. What would the 27 represent in the story?

• What she pays for each coffee

• The rule

• How much money she starts with in her fund

• It means nothing. Mrs. Hartshorn just likes the number 27.

Mrs. Hartshorn uses the formula y = -3x + 27 to keep track of how much money she has in her coffee fund each day (she buys one coffee each day). x is the number of days and y is the amount of money in her coffee account. What does the -3 represent in the story?

• The cost of each coffee

• What she started with in her coffee fund.

• The rule

• It means nothing. Mrs. Hartshorn just likes the number -3.

I use the formula y = 5x + 20 to figure out what I will pay to rent a moped when I go to Old Orchard Beach on vacation. x represents the number of hours that I rent the moped and y is the total cost. What could the 20 represent in this story?

• Constant rate of change

• A flat fee for renting the moped

• Slope

• The cost per hour.

I use the formula y = 5x + 20 to figure out what I will pay to rent a moped when I go to Old Orchard Beach on vacation. x represents the number of hours that I rent the moped and y is the total cost. What could the 5 represent in the story?

• The cost to rent the moped per hour

• The flat fee for renting the moped

• The y intercept

• The starting point in the story.

I use the formula y = 5x + 20 to figure out what I will pay to rent a moped when I go to Old Orchard Beach on vacation. x represents the number of hours that I rent the moped and y is the total cost. If I rented the bike for 6 hours, what would the total cost be?

• $30

• $76

• $20

• $50

I use the formula y = 5x + 20 to figure out what I will pay to rent a moped when I go to Old Orchard Beach on vacation. x represents the number of hours that I rent the moped and y is the total cost. If the total cost to rent the moped was $75, how many hours did I rent the moped for?

• 7 hours

• 10 hours

• 11 hours

• 12 hours

This equation could represent which of following stories?

• Sarah rented a bike for a flat fee of $10 and paid $200 per hour.

• Sarah has $200 in her bank account. Each week she adds another $10 to the account.

• Sarah has $200 in her bank account and takes out $10 per week

• Sarah owes her mom $200. Every week she pays her back 10 dollars.

From the problem, what is the y-intercept and what does it represent

• 1.40

  The cost of a hamburger

• 1.90

  The cost of each topping

• 1.40

  The cost of each topping

• 1.90

  The cost of a hamburger

Based on the function, if Xzavier paid $3.30 for a hamburger, how many toppings were on his burger?

• 1

• 2

• .5

• 3