A basic linear graph would be y=x+2. Does that help?
The answer according to me would be B (-a) + b
Because when you solve it. It would turn into a - b
Answer:

Step-by-step explanation:
we know that
The equation of the circle in center radius form is equal to

where
(h,k) is the center of the circle
r is the radius of the circle
In this problem we have

substitute


Answer:
Rational
Step-by-step explanation:
√4 asks "what times itself is 4?"
The answer is 2.
2x2=4
√4 = 2
2 is rational.