The perimeter of a triangle is P=a+b+c
Answer:
a) On Desmos.
b)The solution set {-2,-2}
Step-by-step explanation:
For drawing a line on graph we require minimum two points.
we have,

Put x = 0,we get
y = 2
∴ Let A (0,2)
Similarly
Put y = 0 we get
x = -1
∴ Let B (-1,0)
Now Draw line AB
For y = -2
It is the line parallel to X axis where Y value is always -2
Now , by drawing these two lines we will get the intersecting point, and this intersecting point is the solution to the system. Let the point be C (-2,-2)
Here we substitute y= -2 in y = 2x + 2 we get

The solution is {-2,-2}
Answer:
y = -2x + 1
Step-by-step explanation:
A parallel line has the same slope but different y-intercept.
Transfer the slope (-2) and the ordered pair (2, -3) into point slope form.
Then make it from point slope form to slope intercept.
Hope this helps you. :)