Functions

If a function is represented by a set of ordered pairs, the, no two pairs have the same second component.

• True

• False

Every line on a Cartesian coordinate plane represents a function.

• True

• False

The relation 𝒚 = 𝒙 is not a function.

• True

• False

An element of the range of a function may be used more than once.

• True

• False

The equation 𝒙² + 𝒚² = 1 represents a function

• True

• False

The figure represents a function

• True

• False

Identify if the graph represents a function or not

• Function

• Not function

This relation is a function. {(4,2), (5,3), (6,2), (3,2), (2,2)}

• True

• False

What is the range of this graph?

• R = {1, 2, 3, 4, 5}

• R = {-6 ≤ y ≤ 6 }

• R = {1 ≤ y ≤ 5 }

• R = {-6, -3, -2, 2, 3, 4, 5, 6}

Does this relation represent a function?

• True

• False