The points on the graphs represent relations. classify these relations according to whether or not they are functions.

Function                           Not a function

Graph A                             Graph A

Graph C                             Graph D

Step-by-step explanation:

We know that,

A function is a relation, in which every element of the domain has a unique image in the co-domain.

So, from the options we see that,

Graph A - It is a function as every element have unique image

Graph B- It is not a function as 2 has more than one image namely 1 and 2.

Graph C- It is a function as every element have unique image

Graph D - It is not a function as 2 has more than one image namely 1 and -1

So, we get,

Function                           Not a function

Graph A                             Graph A

Graph C                             Graph D

step-by-step explanation:

so first find out how much each is worth.

quarter= 25 cents

dime= 10 cents

pennies= 1 cent

then multiply each by how much each is worth.

200                     150                   300

x                         x                     x   1

  25                       10              

                                  300

1000                     1500

+                          

4000                                      

5000                                  

then count 2 from the back and add a period.

$50.00

$15.00

$3.00

and then add them

  $50.00

+

  $15.00

+

    $3.00

$68.00

so sunghee has $68.00

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