Which of the following sets of ordered pairs represent a function? Check all that are true.
{(-3, 7), (-2, 7), (-1, 7), (0, 7), (1, 7)}
{(1.5, 3), (2.5, 3), (5, -3), (6, 2.5), (9, 11)}
{(-27, 15), (14, 2), (37, 0), (14, 15), (-3, 7)}
{(15, -2), (-2, 15), (11, 7), (-4, -4), (10.2, 3)}
{(1, 2), (3, 4), (5, 6), (6, 10), (7, 40)

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.