Answer:
yes, this forms a right angle
The equation of line parallel to
and containing the point(-10,-3) is 
Step-by-step explanation:
We need to write the equation parallel to
and containing the point(-10,-3)
The standard form of point slope equation is:

where m is slope and b is y-intercept
Comparing the given equation
with standard form the slope is m= -1/5
Since the lines are parallel the slope of new line is m = -1/5
Now finding b (y-intercept)
Using slope m=-1/5 and point (-10,-3)

So, b= -5 and slope = -1/5 the equation of new line is:

So, The equation of line parallel to
and containing the point(-10,-3) is 
Keywords: Point Slope form
Learn more about point slope form at:
#learnwithBrainly
All the sides added up! That's how to find the perimeter.
Answer:
10 units
10000 units
10100101 units and 20 units
10. 24x-8. 11. 5x+6x+2x+15x=28x I hope this is right