Answer:
KEYS is a square
Showing as plotted and connected points
See the attached
10 - 2.99 = 7.01 and 7.01 - 1.07 = 5.94 so you will get 5.94 in change
You would add like terms so it would be 1x then you add 1 to 7 so you would get 8.. the you divide both sides by 1x and you'd get 8=x
The answer to this question is:
y = -2x - 1