Pre-Algebra Review

Which statement is true about the scatter plots?

• Graph 1 shows a strong relationship, and Graph 2 shows a weak relationship.
• Graph 2 shows a strong relationship, and Graph 1 shows a weak relationship
• Graph 1 shows a negative correlation, and Graph 2 shows a positive correlation.  
• Graph 2 shows a negative correlation, and Graph 1 shows a positive correlation.

Tags

CCSS.HSS.ID.B.5

• A
• B
• C
• D

Tags

CCSS.7.EE.B.4B

Which best describes the equation?
y = 75x

• Proportional
• Nonproportional

Tags

CCSS.7.RP.A.2C

Is this mapping a function or not a function? 

• Function
• Not a Function 

Tags

CCSS.8.F.A.1

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Is this graph a function or not a function?

• Function

• Not a Function

Answer explanation

*Vertical line test* & Think about a vending machine: inputs (x-values) are "buttons", outputs (y-values) are what the vending machine gives you - are your outputs consistent for an input/"button"?

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Organize these numbers into rational and irrational.

Groups:

(a) Rational

,

(b) Irrational

• 32, -32

• 8, -8

• 4096

• 4

Tags

CCSS.8.EE.A.2

• 13

• 84.5

• -13

• 169

Tags

CCSS.8.EE.A.2