CCSS.Math.Content.8.SP.A.3

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.Math.Content.8.SP.A.3

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.Math.Content.8.SP.A.3

What is the x-intercept shown on the graph?

• (4, -2)
• (0, -2)
• (4, 0)
• (0, 4)

Tags

CCSS.Math.Content.HSA.REI.D.11

CCSS.Math.Content.8.SP.A.3

If the parent function (y = x) is changed to have a slope of (2/3) and a y-intercept of 4, then which is true?

• The new line is steeper than the original and the y-intercept has been translated down.
• The new line is less steep than the original and the y-intercept has been translated up.
• The new line is steeper than the original and the y-intercept has been translated up.
• The new line is less steep than the original and the y-intercept has been translated down.

Tags

CCSS.Math.Content.8.SP.A.3

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Tags

CCSS.Math.Content.8.SP.A.3

Identify the slope and y-intercept of:
y = 1/5x + 5

• slope: 1/6   y-intercept:  4 
• slope: 1/5   y-intercept:  5 
• slope: 5/1   y-intercept:  5 
• slope: 1   y-intercept:  5 

Tags

CCSS.Math.Content.8.SP.A.3

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Tags

CCSS.Math.Content.8.SP.A.3

Stephanie owes her mom $80 for a recent trip to the mall. She plans to payback $15 a month until it is paid back. Write an equation in slope-intercept form that relates the amount she owes, y, to the amount of months, x.

• y = 15x - 80

• y = 15x + 80

• y = -15x + 80

• y = -15x - 80

Tags

CCSS.Math.Content.8.SP.A.3

What is the equation of the line of best fit?

• y= $-\frac{1}{2}x\ +\ 6$

• y= $\frac{1}{2}x\ +6$

• y= 6x + 2

• y = -2x +6

Tags

CCSS.Math.Content.8.SP.A.3

For the equation

y + 1 = −3(x - 5),

the line contains the point (5, −1), but what is the slope?

• −1

• 3

• −3

• 5

Tags

CCSS.Math.Content.8.SP.A.3