Answer:

Step-by-step explanation:
Given
Horizontal Line

Required
Determine the equation
The equation is calculated using:

Where

Because the line is a horizontal line, then:

Substitute 0 for m and values for x1 and y1 in 



Subtract 2 from both sides


Hence, the equation is: 
Answer:
here u go
Step-by-step explanation:
< DBC (angle DBC)
Answer:
1.4285714285714%
Step-by-step explanation:
Dividí el numero + entre -
Answer:
x is 4.
Step-by-step explanation:
8 times 8 is 64
64 minus 4 is 60
60 divided by 15 is 4
Angles on a straight line add up to 180 degrees so
45 + 3x = 180
Subtract 45 from both sides to remove the 45 on the left
3x = 135
Then divide both sides by 3
x = 45
Answer is X = 45