Equations for Slope on a Graph

Use the graph to find all the possible solutions on the line y = -2x + 3.
Then choose the correct answer.

•   (2, 0)  (1, 2)  
        (4, -4)  (-3, 10)

•   (3, 11)  (-2, -4)  
      (1, 5)  (-1, -1)

•  (0, 1)  (1, 6)  
        (1, -2)  (10, -16)

•   (-1, 5)  (-3, 9)  
       (1, 1)  (6, -9)

Tags

CCSS.8.EE.C.8B

How many solutions does the following system have? Why?
y = -2/3x + 5
2x + 3y = 15

• None.  The equations have the same slope and different  
  y-intercepts

• Infinitely many.  The equations are exactly the same when in slope-intercept form.

• Three.  There are two equations so there are exactly three solutions to the system.

• One.  The equations have different slopes so there is exactly one solution.

Tags

CCSS.8.EE.C.8B

Graph
 y = 4x - 5
Which graph is correct?

• Graph A

• Graph B

• Graph C

• Graph D

Is the point (2, 3) a possible solution? Explain.

• Yes.  The point is on the graphed line.

• No.  The point is NOT on the graphed line.

Based on the graph, which line has the steepest (aka largest) slope?

• Company A

• Company B

• Company C

Tags

CCSS.8.EE.B.5

Which statement is not true?

• A and B

• D only

• C only

• A, B and D

Tags

CCSS.8.EE.B.6

find the slope

Tags

CCSS.8.EE.B.5

Find the slope

Tags

CCSS.8.EE.B.5

What is the slope?

• 1.5 miles per dollar

• 15 miles

• 15 dollars

• 1.5 dollars per mile

Tags

CCSS.8.EE.B.5

Dev keeps a record in graph form of how far his car travels and the number of gallons of gasoline it uses.
What is the slope of the graph?

• 64

• 128

• 32

• 16

Tags

CCSS.HSF.IF.B.4