15. 
Step 1: Distribute the subtraction sign to all the numbers in the second set of parentheses...


Step 2: Combine like terms (
's go with
's)




Step 3: Combine like terms (
's go with
's)




Step 4: Combine like terms (normal numbers go with normal numbers)

1 + 2
3

You were correct!
16. 
I don't really know how to explain this one but I got: (7m-6n)(7m-6n)
Answer:
The function is
.
Step-by-step explanation:
We have to choose from options the exponential function which has a simplified base of 4∛4 i.e. ∛(256).
Now, the exponential function in the option III will be the answer.
The function is
.
So, the base is
=
. (Answer)
The general formula of an exponential function is
, where b is called the base of the function.
Answer:
y = - 2
Step-by-step explanation:
Find slope
(-2 - (-2))/(0-2)
(-2 + 2)//(-2)
0/2
0 ---> slope
plug in ---> y=mx+b
y=0x+b
-2=0*0+b
-2=b
equation: y=0x-2, y=-2