Alg Functions and Relations

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.

Is this mapping a function or not a function? 

• Function

• Not a Function

Give the domain and range. Tell if it is a function.

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

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

• D: {-4, -2, 0, 2}
  R: {-2, -2, 1, 1}
  Not a Function

• D: {-4, -2, 0, 2}
  R: {-2, 1}
  Not a Function

A set of ordered pairs is called what?

• Coordinates

• Relation

• Function

• Vertical Line Test

What is the domain of the following graph?

• D: {-5, -1,  0 , 1, 5}

• D: {-4, -2, 0, 3, 6}

What is the range of the following graph?

• R: {-5, -1, 0 , 1, 5}

• R: {-4, -2, 0, 3, 6}

Determine the correct relation for the points shown on this graph.

• {(-3,4), (-4,3),(-4,1),(-2,-4)}

• {(-4,1),(1,2),(-1,-4),(-3,-4)}

• {(-2,3),(-4,3),(-1,2),(-4,-2)}

• {(-3,4),(3,4),(1,-4),(-2,-4)}

What is the range of the relation {(7,3),(5,6),(-2,-4),(-4,3)}

• {7,5,-2,-4}

• {-2,5,7}

• {-4,3,6}

• {3,6,-4,3}

What is the domain of this relation?

• {-8,4,4,6}

• {-8,4,6}

• {-4,2,2,8}

• {-4,2,8}

If f(x)=3x-1 and g(x)=2x²-3, what is the value of f(2)+g(3)?

• 5

• 13

• 20

• 38