Identifying Function from Tables, Ordered Pair, Mapping Diagram and Graph

Which set of ordered pairs is a function?

• <(p>{(9,5), (10,5), (9,-5), (10,-5)}

• {(3,4), (4,-3), (7,4), (3, 8)}

• {(6,-5), (7, -3), (8, -1), (9, 1)}

• {(2, -2), (5, 9), (5, -7), (1, 4)}

Tags

CCSS.8.F.A.1

How do you determine if a relation is a function? 

• The vertical line test crosses more than one point on the graph.

• The same y-values are mapped from the same x-values.

• The vertical line test crosses only one point on the graph.

• Each input is related to more than one output.

Is this graph a function? How did you know?

• No, using vertical line test.

• Yes, using horizontal line test.

• Yes, using its table of values.

• Yes, using the mapping diagram

Is this graph a function? How did you know?

• No, using vertical line test.

• Yes, using vertical line test.

• No, because there are values repeated in its range.

• Yes, because there are no values repeated in its domain.

Tags

CCSS.8.F.A.1

Tell whether the relationship is a function

• Function

• Not Function

Tags

CCSS.8.F.A.1

How can you tell if a graph is a linear function based on its points?

• The points form a straight line with a constant slope.

• The points form a circle with varying radii.

• The points are randomly scattered without any pattern.

• The points create a parabolic curve.

Tags

CCSS.8.F.A.3

What type of function is represented by a horizontal line?

• Quadratic function

• Constant function

• Exponential function

• Linear function

Is this mapping a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

Is this set of ordered pairs a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes

• No

Tags

CCSS.8.F.A.1