Unit 3 Test Review

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function
• Not a Function 

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function
• Not a Function

The set of ordered pairs represents a relationship between x and y. Which statement is true?

• The relationship does not represent y as a function of x because at least one x-value is associated with more than one y-value

• The relationship represents y as a function of x because every x-value is associated with only one y-value

• The relationship does not represent y as a function of x because one y-value is associated with more than one x-value

• The relationship represents y as a function of x because at least one x-value is associated with more than one y-value

Tags

CCSS.8.F.A.1

Write the equation of the line in slope-intercept form.

• y = -2x - 5

• y = 2x - 5

• y = -2x

• y = -1/2x - 5

Write an equation for the line in slope-intercept form.

• y = 1/2x

• y = -1/2x

• y = 2x + 1

• y = -2x - 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2