Linear Functions

What is the definition of a function?

• Has inputs and outputs

• Every input has only ONE output

• Every output has only ONE input

• Has x-values and y-values

Tags

CCSS.8.F.A.1

Which graph is linear?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.F.A.3

Find the slope from the table.

• -4
• 1
• 4
• -2

Tags

CCSS.8.EE.B.5

Write the equation of the line.

• y=(3/5)x+1
• y=(3/5)x-1
• y=(5/3)x+1
• y=(3/5)x+1

Write the equation for the line.

• y= -1x+3
• y= 4x+3
• y=(1/4)x+3
• y= -4x+3

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values paired 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 paired with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function
• Not a Function

Is this mapping diagram a function or not a function?

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Which equation matches the table?

• y = 3x + 9
• y = x + 9 
• y = x + 3
• y = 12x - 3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2