8th Math Functions

Front

What is the definition of a function?

Back

A function is a relation where every input has only ONE output.

Tags

CCSS.8.F.A.1

Front

Is the graph of a relation a function?

Back

If a vertical line intersects the graph at more than one point, it is not a function.

Front

Find the slope of the line that passes through the points (2, 4) and (6, 12).

Back

The slope is 2.

Tags

CCSS.8.EE.B.5

Front

Is the function represented by the table linear or nonlinear?

Back

If the rate of change is not constant, it is nonlinear.

Tags

CCSS.8.F.A.3

Front

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Back

Domain: {-4, 0, 1, 2}; Range: {-4, -3, 1}.

Front

What is the slope-intercept form of a linear function?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does it mean for a function to be linear?

Back

A linear function has a constant rate of change and can be represented by a straight line.

Tags

CCSS.HSF-LE.A.1B

Front

How do you determine if a relation is a function from a set of ordered pairs?

Back

Check if any x-value is repeated; if it is, the relation is not a function.

Tags

CCSS.8.F.A.1

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for the function.

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for the function.