Patterns can be used to determine products of a number of a power of 10 by following it to obtain easily the answer. When you multiply a number by the power of 10 you just have to write the number then add the number of corresponding number of 0s to the end which will be the same number as the power used.
Hope this helped : )
Answer:
The quotient is 
Step-by-step explanation:
We want to simplify:

We factor the numerator to get:

We cancel out the common factors to get:

Therefore the quotient is 
y-1= ±3/10(x-2)
Im not sure how to get this answer but my teacher gave it to me so i hope this helps!
It is how much the x values can expand on a graph