Seventh Grade Math work questions in Description.

Question

1 What are the outputs of the following function?
{(-3, 2), (-4, 2), (8, 3), (7, 1)}
{1, 2, 3}
{3, 2, 1, 2}
{-3, -4, 2, 1, 7, 8, 3}
{1, 2, 3, -4, 7}

2 What are the inputs of the following function?
x      y

-3

0     -2

1

9

{-3, -2}
{-2}
{-3, -2, 0, 1, 9}
{-3, 0, 1, 9}

 

3 Which of the following sets of ordered pairs is not a function?
{(1, 4), (2, 5), (3, 6), (4, 7)}
{(0, 2), (1, 2), (2, 2), (3, 2)}
{(-1, 5), (2, 4), (2, 6), (-3, 7)}
{(-4, 3), (-1, 1), (-2, 5), (3, 7)}

4 True or False

A function must have exactly one output for every input.

 

 

Answer 1

outputs are the y values, the dependent variable

inputs are the x values, the independent variables

3rd set in 3) is not a function due to (2,4), (2,6) which has 2 outputs for the same input

4) True