Answer:
It isn't necessary but having a positive coefficient for 
makes things like completing the square and factoring easier.
Can’t help you with this, we need either the picture of the graph or the formula for the graph
Answer:
3?
Step-by-step explanation:
3 is the slope intercept I believe
Answer:
The answer is 186 inches^2
Answer:
2
Step-by-step explanation:
For the image, you just multiply the numbers to find the sides
(4*2=8 5*2=10 3*2=6)
Then find out how you went from the preimage to the image.
4 * 2 = 8 etc.
