3. Functions

Determine whether each relation defines a function. See Example 1.

Determine whether each relation defines a function. See Example 1.

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4. {(1,1),(1,-1),(0,0),(2,4),(2,-4)}

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4. {(2,5),(3,7),(3,9),(5,11)}

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4.

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4.

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4.

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4.

Determine whether each relation defines a function, and give the domain and range. See Examples 1–4.

Determine whether each relation defines y as a function of x. Give the domain and range. See Example 5. y=-7/(x-5)

Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(-3)

Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. g(-2)

Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. g(10)

Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(-7/3)

Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. g(1/2)