Writing Linear Equations Support

1. A plant is 5cm tall and growing at a rate of 3cm a month.

• y = 5 + 3

• y = 5x + 3

• y = 5 + 3x

• y = -5 + 3x

Sonia has $40 in her lunch account and pays $2 each day to eat lunch.

• y = 40 + 2x

• 40 - 2x = y

• 2 + 40x = y

• y = 2 - 40x

A camp charges families a fee of $625 per month for one child and a certain amount more per month for each additional child. Use the graph to write an equation in slope-intercept form to represent the amount a family with x additional children would pay.

• y = 625x + 225
• y = 225x 
• y = 225x + 625
• y =  625

Tags

CCSS.8.EE.B.5

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 could be descried by the equation y= -25x + 120

• 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.HSF.LE.B.5

What is the y-intercept of this graph?

• (0,1)
• (0,-2)
• (0,0)
• (0,3)

Tags

CCSS.8.F.B.4

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.SP.A.3

Which equation is being represented by this line?

• y = -1x + 2
• y = 1/2x + 2
• y = 3x -4
• y = -3x +2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the equation of the line?

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

Tags

CCSS.8.F.B.4

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.EE.B.5

Which equation matches the table?

• y = 3x + 9
• y = x + 9 
• y = x + 3
• y = 12x - 3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the equation of the linear function?

• y = -3x + 10
• y = -3x + 16
• y = 3x + 10
• y = 3x + 16

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2