Equations of a Line

Find the slope of the line that goes through the points (-8,6) and (7,-3).

• 1/3
• -1/3
• -3/5
• -5/3

Tags

CCSS.8.EE.B.5

Find the mistake. 

• They got the wrong slope. 
• They chose the wrong y-intercept. 
• They plugged in their values incorrectly. 
• They simplified wrong. 

Which point below is the coordinate representation of all y-intercepts?

• (0, m)
• (0, b)
• (m, 0)
• (b, 0)

In the table below which coordinate would represent a y-intercept?

• (1,3)
• (0,1)
• (2,9)
• (-1, 1/3)

Tags

CCSS.HSF-IF.C.7E

Find the equation that represents the line going through (0, 2) and (-4, 0).

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

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

Find the equation that represents the line going through the table. Use your understanding of intercepts to help you solve the problem. 

• y = -3x - 2
• y = 1/3 x + 2
• y = -1/3 x + 5
• y = 3x + 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Find the Mistake. 

• They got the wrong y-intercept. 
• They set up their slope formula incorrectly. 
• They plugged them in incorrectly. 
• They simplified wrong. 

Write the equation of the line.

• y=3/5x+1
• y=3/5x-1
• y=5/3x+1
• y=3/5x+1

If Gold's Gym is looking to buy 30 TVs, how much will each one cost?

• 400
• 750
• 1250
• 0