B- Not sure if it's a line
C- y=(-x/2)-6
D- y=4x-12
E- y=(2/5)x-10
Answer:
its 90 bro whenever you see that square on a corner its always 90 degrees
Step-by-step explanation:
The answer will be
x=root 121
x=11
Answer: 
Step-by-step explanation:
I hope you mean y = x² - 12 and not y = 2x - 12.
You switch the y and x variables:
x = y² - 12
And solve for y:
x + 12 = y²

No it’s not a rational number