Answer:
∠5
Step-by-step explanation:
A linear pair of angles create a straight line
The only angle that creates a straight line with ∠1 is ∠5 therefore cyan is the answer
B. Add -12x to both sides. Then divide all terms by -2. The positive 12 on the right side will be a -6 and the -42 will be a positive 21. The inequality sign is always switched whenever the equation is divided by a negative number.
Step-by-step explanation:
x^2=9/49
√x^2=√9/49
x=+or-3/7
Equation of a line in slope-intercept form:

m is the slope
b is the y-intercept
As you have the slope (m= -4) and a point (6,1) you use it in the equation above to find the y-intercept, as follow:
(6,1) x=6 y=1
m= -4

Solve b:

Then, the equation of the given line in slope-intercept form is: