Linear Equations: Slope-Intercept Form

Ezra's Auto Wash earns $5 per customer plus an additional flat fee of $8.

Write a linear equation where C represent cost and n is number of customers.

• C = 5n +8

• C = 8n +5

• N = 5c + 8

• N = 8c +5

Carter earns $10 per yard he mows during his summer job. He charges the earns a flat fee of $400 from the company's owner to start.

Write a linear equation where C represents the cost and y represents the yards.

• C = 10y + 400

• C =400y + 10

• y = 10c + 400

• y = 400C + 10

Maria is planning a birthday part for her sister at her favorite restaurant. The restaurant charges an initial fee of $140 plus an additional $8 for each guest.

Write a linear equation where C represents the cost of the party and g the number of guests.

• C = 8g + 140

• C = 140g + 8

• G = 8c + 140

• G = 140 c + 8

Drew wants to go to the county fair. The county fair charges a student fee of $3. Once Drew is at the fair it costs $1.50 for every ride.

Use the linear model: C = 1.50r + 3

Where c represent cost and r the number of rides.

How how many rides can he go on if he has $36?

• 22 rides

• 57 rides

• 1.50

• 20

Araceli is reading a chapter book for school. She has already read 54 pages. She reads 4 pages per minute.

Write a linear model where p represents number of pages and m minutes.

Then find out how long it would take her to get to 90 pages.

• P = 4m + 54

  9 minutes

• M = 4m + 54

  9 Minutes

• P = 4m + 54

  414 minutes

• P = 4m + 90

  54 minutes

Alex knows how to make 8 dishes. He then learns 3 new recipes each week of culinary school.

Let N represent the number of dishes, and w the number of weeks.

Then, find out how many recipes Alex will know in 3 weeks.

• N = 3w + 8

  17 recipes

• W = 3n + 8

  1.67 recipes

• N = 8w + 3

  27 recipes

• N = 8w

  24 recipes

Given: 3x + 7y = 33

If x = 4, what is the value of y?

• y = 3

• y = 5/3

• y = 1.6

• 5

Which graph represents the inequality (zoom in)

• A

• B

• C

• D

Which graph represents the inequality (zoom in)

• A

• B

• C

• D