Answer: 3
Step-by-step explanation: This is because the 2 numbers are opposites, which cancel each other out, going back to zero.
B and c, anything with an x^2 term is a quadratic.
Answer:
The mid-point is (9,-9/2)
Step-by-step explanation:
You would use the mid-point formula for this

if you plug that in it is (
)
resulting in (11/2,-2/2) = (11/2,-1)
A
i need to put 20 characters in here so imma tell you, just use desmos.com. if you type in the equations, it’ll show you the graph