Which of the following functions is graphed below?

we will proceed to graph each case to determine the solution of the problem

case a)

Using a graph tool

see the attached figure N

The case a) is not the function in the graph

case b)

Using a graph tool

see the attached figure N

The case b) is not the function in the graph

case c)

Using a graph tool

see the attached figure N

The case c) is the function in the graph

case d)

Using a graph tool

see the attached figure N

The case d) is not the function in the graph

therefore

the answer is

the function in the graph is the option C

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

a: 1/6, j: 1/4

step-by-step explanation: you are welcome