Evaluate functions from their graph g(-9) Please help my teacher doesn’t teach us anything and just gives us khan academy assignments and I’m really stressing out from this assignment

g(-9)=1

Step-by-step explanation:

OH MY GOD SAME I don't get why teachers give us assignments made by other teachers when their purpose is to TEACH US

but ok back to the problem :D

g(-9) is representative of the form f(x), where x is your x value!

This means that you need to find the x value of -9 in order to find the y value (what the assignment is asking you for)

If you look for -9, you go up one and see that your y value is 1, therefore giving you the answer!

It looks super confusing at first, but just remember that any variable with a number inside of it will be you x value!

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".