Answer:
The answer is all real numbers
Step-by-step explanation:
4(x + 2) = 4x +8
Distribute the 4:
4x + 8 = 4x + 8
Then subtract 4x and 8 from both sides
0 = 0
This statement is true so its all real numbers
Answer:
True
Step-by-step explanation:
So we know that:

And we are asked to verify whether f(2)=0 is true or false.
To determine the answer, substitute 2 for n in the function and solve. So:

Square and multiply:

Subtract:

So, the statement is indeed true.
And we're done!
Answer:
The first one
Scale factor is 7
x = 3
The second one
Scale factor is 9
x = 99
Step-by-step explanation:
The first one
You can find out by dividing 49 by 7 which is 7
to find x = 21 divided by 7 is 3
The second one
You can find out by dividing 162 by 18 which is 9
to find x = 11 multiplied by 9 (since it is "opposite") is 99