2.1.4 + Quiz Review

 $y=\frac{1}{2}x-4$  

What is the slope?

Answer explanation

1/2 

Tags

CCSS.8.EE.B.5

 $y=\frac{1}{2}x-4$  

What is the y intercept?

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

 $y=\frac{1}{2}x-4$  

What is the correct graph?

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Find the slope of a line that goes through (4,1) and (2,5)

Tags

CCSS.8.EE.B.5

Find the slope of a line that goes through the origin and (10,5)

Tags

CCSS.8.EE.B.5

Find the slope of a vertical line that goes through the point (6,-5)

Answer explanation

Remember, a horizontal line does not have a slope because we cannot divide by zero. It is undefined.

Tags

CCSS.8.EE.B.5

Ms. Cai’s class is studying a tile pattern. The rule for the tile pattern is y=10x−18. Kalil thinks that Figure 12 of this pattern will have 108 tiles. Is he correct?

Hint: Plug in 12 for x because x represents the figure number!

Answer explanation

No; when x=12,y=102, so it would have 102 tiles.

Tags

CCSS.HSF.IF.A.2

What is the slope of the line y= -5?

Hint: graph it on desmos to see what it looks like!

Answer explanation

Remember horizontal lines always have a slope of 0!

Tags

CCSS.8.EE.B.5

Just type in the number!

Tags

CCSS.6.EE.A.2C

Just type in the number!

Answer explanation

-4 is the correct answer

Tags

CCSS.6.EE.A.2C