Algebra 1 - Relations and Functions

What is coordinate R?

• (2,5)
• (0,1)
• (2,3)
• (1,0)

Tags

CCSS.5.G.A.1

What is the independent variable in the following relation?

Kevin's cell phone is part of a family plan. If he uses more data than his share, then there is less data available for the rest of his family.

• The amount of data Kevin uses

• The amount of data available for the rest of the family

• The cost of Kevin's phone

• The total cost of the family plan

Is this table a function or not a function? 

• Function
• Not a Function 

Tags

CCSS.8.F.A.1

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{0, 1, 2, -4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3}
  R:{0, 1, 2, 3, 4}

Tags

CCSS.8.F.A.1

What is f(6) for the function f(x) = 3x - 8

• -8

• 10

• -144

• 18x - 48

 $f\left(x\right)=x^2-5x$  

Find  $f\left(-2\right)$   

• 14

• -14

• 6

• -6

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 a function?

• Yes - because it passes the vertical line test

• Yes - because it passes the horizontal line test

• No - because it fails the vertical line test

• No - because it fails the horizontal line test

 $f\left(x\right)=2x-5\ \ \ \ and\ \ \ \ g\left(x\right)=-6x+1$  
Find  $f\left(4\right)+g\left(5\right)$  

• -26

• -28

• 32

• 34

 $f\left(x\right)=x^2+2$  
Find  $f\left(-3a\right)$  

•  $9a^2+2$  

•  $-9a^2+2$  

•  $9a+2$  

•  $-3a^2+2$