Answer:
y + 10 = 0
Step-by-step explanation:
Slope of horizontal line is zero (0)
m = 0
By point slope form of a line.

Answer:
a. n= 1x +7
b. n= 12 + 4x
Step-by-step explanation:
Answer:
The answer would be B)
Step-by-step explanation:
So firstly, square root 9a^2 and 49: 
Next, combine like terms, and your answer will be
, or the third option.