Equations as 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

Which of the following sets of values is a function? (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)

Back

(6,-5) (7, -3) (8, -1) (9, 1) is a function.

Tags

CCSS.8.F.A.1

Front

If y=4x+5, what does y equal when x is 4?

Back

y = 21 when x = 4.

Tags

CCSS.HSF.IF.A.2

Front

Find the missing OUTPUT value for the function f(x) = 2x - 1 when x = 9.

Back

The missing OUTPUT value is 17.

Tags

CCSS.HSF.IF.A.2

Front

Is this mapping a function or not a function? (1,2), (2,3), (3,4), (1,5)

Back

Not a Function.

Tags

CCSS.8.F.A.1

Front

What is the vertical line test?

Back

A method to determine if a relation is a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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

Front

If f(x) = x^2, what is f(3)?

Back

f(3) = 9.

Tags

CCSS.HSF.IF.A.2

Front

What does it mean for a function to be linear?

Back

A function is linear if it can be graphically represented as a straight line.

Tags

CCSS.8.F.A.3