Function from Two Points

Is this relation a function?

• Function

• Not a function

Is this relation a function?

• Function

• Not a function

(6,-5) (7, -3) (8, -1) (9, 1)

Is this relation a function?

• Function

• Not a function

Is this relation a function?

• Function

• Not a function

What point should be removed from the data set to have the graph represent a function?

• 2, 7

• 7, 2

• 1,0

• 0, 1

A function passes through the points (–4, 48) and (–1, 6). Which equations could represent this function? Select TWO that apply.

• y = 14x -8

• y = -14x - 8

Some students are studying graphs of functions y = f(x) and other equations.  Each table contains some points on a particular graph.  Decide whether each set of points might be on the graph of a function or cannot be on the graph of a function.

c

a

b

X

X

X

What point should be removed from the data set to have the graph represent a function?

• 2, 7

• 7, 2

• 1,0

• 0, 1

Is this relation a function?

• Function

• Not a function

Does this table represent a function?

• Yes 

• No