Solution to Function

Which function is represented by the table below?

• y = x = 2

• y = 2x

• y = -2x

• y = x - 1

Which of the coordinates below is a solution to y = -2x?

• (-1, 2)

• (2, 4)

• (-2, -4)

• (1, 2)

Which ordered pair is a solution to y = x + 3 ?

• (-2,1)

• (-2,-1)

• (-1,-2)

• (-1,2)

Which ordered pair is a solution to y = x - 1 ?

• (2,-5)

• (2,2)

• (1,-2)

• (3,2)

Does the mapping of these points represent a function? (Note: the left oval represents your x values and the right oval represents your y values)

• Function

• Not a Function

Which of the following does not represent a function?

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

• All real numbers

• All real numbers except 2

• All real numbers except 0

• All real numbers except -2

• All real numbers

• All positive real numbers

• All non-negative real numbers

• All negative real numbers

Which of the following represents a function?