8th grade writing linear equations

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

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x
• y=15x+80
• y=x+15
• y=80x+15

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following situations can be represented by y=10+0.55n

• The total cost at a store for one book that costs $10 and n bookmarks that cost $0.55 each.
• The total cost of 10 bags of chips that cost $0.55 each.
• The height of a tree after n day that was 10feet tall and it grew 55 feet a day.
• Not here

Tags

CCSS.HSF.LE.B.5

An electrician charges $25 to make a house call, plus $40 for every hour of work. Which equation shows how to find C, the total cost for having the electrician work for h hours?

• C = 25+40h
• C = 65+h
• C = 65h
• C = 25h +40

Tags

CCSS.HSF-BF.A.1A

Which equation best represents the line on the graph?

• y= 1/2x
• y= -1/2x
• y = 2x
• y = -2x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Tags

CCSS.HSS.ID.C.7

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Give the equation for the graph

• y = 5x - 3
• y = 4x + 2
• y =-2x + 5
• y = - 2x + 4

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.CED.A.2

Which statement best describes "b"?

• x-intercept
• y- intercept
• Slope
• Bee

Tags

CCSS.HSS.ID.C.7

Which statement best describes "m"?

• x- intercept
• y - intercept
• slope
• bee

Given the equation y = 2x+3, what is the slope?

• 2
• x
• 3
• IDK

Tags

CCSS.8.EE.B.5