Ch. 5 Spiral Review M8

Do you have the Spiral Review WS?

• Yes

• I do

• Looking for it now.

• Can't find it!

  I'll use another piece of paper.

#1A

Suppose Jack graphed his equation.

Identify the slope of his graph

(a)   ​

and explain what it means.

​ (b)  

• 5/4
• $1.25 per gallon
• 4/5
• $0.80 per gallon
• 1.25 gallons
• 0.80 gallons

Answer explanation

Tags

CCSS.HSF.LE.B.5

#1B

Identify the slope of Jill's graph

​​ (a)  

and explain what it means.

​ (b)  

• 4/5
• $0.80 per gallon
• 1.25 gallons
• 0.80 gallons
• $1.25 per gallon
• 5/4

Answer explanation

Tags

CCSS.8.EE.B.5

#1C

How do the slopes of the graphs compare?

​ ​

• Jack charges more per gallon of water.

• Jill charges more per gallon of water.

• Jack carries more water.

• Jill carries more water.

Tags

CCSS.8.EE.B.5

Mathematical Equivalence

ON

Answer explanation

#3

• Yes.

  Each input has exactly one output.

• Yes.

  Each output has exactly one input.

• No.

  An input has more than one output.

• No.

  An output has more than one input.

Answer explanation

The x value of 1 has two outputs.

(1 , -1.8)

(1 , 1.8)

Tags

CCSS.8.F.A.1

#4

Order the linear functions by rate of change,

from Least to​ Greatest

​ ​ ​ ​ ​

​ (a)   ​​ (b)   ​ ​ (c)  

(hint... find the slope using the slope formula)

​ ​

• Function B
• Function A
• Function C

Answer explanation

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

#5

Identify the type of dilation

between the two figures.

​

• Reduction

• Enlargement

Tags

CCSS.8.G.A.3

#6

Find the scale factor between the two figures.

​

• 1/2

• 2

Answer explanation

(1 , 1) > (2 , 2 )

Tags

CCSS.7.G.A.1

#7

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______. 

• 45°
• 90°
• 180°
• 360°

Tags

CCSS.8.G.A.5