3 8th Grade Scatter plots

Adrianna has $20 in her savings account. Each week she will add $5 to it. Which equation represents this situation?

• y=25x
• y=20x+5
• y=5x+20
• y=5x

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

What is the equation of this line?

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

What is the equation of this line?

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

What is the equation of this line?

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

What do we call a point far away from the other data points on a scatter plot?

• cluster
• y-intercept
• outlier
• variable

The graph represents the money in a savings account.  What is the meaning of the y-intercept?

• The starting deposit was $30
• $30 is added to the account each week
• It took 30 weeks to save enough money to open an account
• not enough information

Write an equation for the word problem: Domino's charges $10 per pizza. They also charge a delivery fee of $3.

• y = 3x + 10
• y = 10x + 3
• y = 10x 
• y = 3x

Write an equation for the word problem: 
A tree was planted when it was 10 inches tall. It grows 3 inches per week.

• y = 3x
• y = 10x + 3
• y = 10x
• y = 3x + 10

In slope intercept form (y=mx+b) what is the "m"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

Tags

CCSS.HSS.ID.C.7

In slope intercept form (y=mx+b) what is the "b"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

Tags

CCSS.HSF.LE.B.5

CCSS.HSS.ID.C.7