Alg Functions and Relations

Give the domain and range of the relation. AND state whether the relation is a function.

• The relation is NOT a function.

• Yes, the relation is a function.

• D: {-8, -2, 1, 4}

  R: {-10, 0, 10}

• D: {-10, 0, 10}

  R: {-8, -2, 1, 4}

• D: [-8, 4]

  R: [-10, 10]

Give the domain and range of the relation. AND state whether the relation is a function.

• The relation is NOT a function.

• Yes, the relation is a function.

• D: [-4, 2]

  R: [-3, 3]

• D: [-3, 3]

  R: [-4, 2]

Find g(-2)

• -10

• 18

• 10

• -18

Find h(5) + g(9)

• 48

• 12

• -12

• 174

GIve the domain and range of the relation.

AND state whether the relation is a function.

• D: all real numbers

  R: all real numbers

• D: all real numbers

  R: [-1, 3]

• D: [-1, 3]

  R: all real numbers

• Yes, the relation is a function.

• The relation is NOT a function.

find f(-8)

• -8

• 1

• -1

• 23

Find g(6) - h(3)

• -6

• 12

• -18

• 6

If f(x) = 52, find x

• x = -253

• x = -9

• x = 9

• x = 27

Is this mapping a function or not a function? 

• Function

• Not a Function 

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.