Answer:
no change
Step-by-step explanation:
Let the sticker price = x
Price reduced by $300
Hence the new price = x-$300
The cost of additional features = $900
Hence the new price fo selling will be x-$300+$900
=x+$600
now Dealer also provide a discount of $600
Hence Final selling price will be
=x+$600-$600
=x
Hence thee seems to be no change in the sticker price as the sticker price and the final selling price are the same.
An equation is said to have a constant of proportionality if 'x' is a multiple of 'y' or 'y' is a multiple of 'x'.
Now, we have to determine an equation with constant of proportionality as '1'.
1.
This equation has constant of proportionality as ''.
2.
This equation has constant of proportionality as ''.
3.
This equation has constant of proportionality as ''.
4.
This equation has constant of proportionality as '1'.
Option D is the correct answer.