8.4c Slope and y-intercept

Which is NOT the formula for slope?

• 
• 
• 
• 

Similar right triangles can be used to find slope.

• True

• False

Which are the correct steps for finding slope in your calculator?

• STAT-EDIT

  STAT-CALC-4

  Enter 5 times

  y=ax+b

• y=

  y1:

  y2:

  GRAPH

  2nd-TRACE-5

  Enter 3 times

  x=

Which way does not work to find slope?

• Choose 2 corner points. Find change in y divided by change in x

• Choose 2 corner points on the line, enter in STAT

• Choose 2 corner points on the line, Rise divided by Run

• Choose 2 corner points, and enter in y=

Find the slope and y-intercept.

• m=45 b=3.75

• m=3.75 b=45

• m=7.50 b=60

• m=2 b=7.50

Tags

CCSS.8.EE.B.5

How much money does Rico earn each hour of doing chores?

• 2

• 4

• 6

• 8

Tags

CCSS.HSF-LE.A.1B

What is the y intercept of this graph?

• (6,2)

• (-2,0)

• (2,6)

• (0,3)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Using the table and the graph, identify the y intercept.

• (0,2)

• (2,6)

• (4,10)

• (6,14)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

What does the y intercept mean on this graph?

• It took the hiker 18 minutes to reach the bottom.

• It took the hiker 360 minutes to reach the bottom.

• The hiker started out at a height of 360 feet.

• The hiker started out at a height of 18 feet.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Find the slope of the line that passes through 
(-4, 7) and (-6, -4)

• 2/11
• -2/11
• 11/2
• -11/2

Tags

CCSS.8.EE.B.5