Answer:
y=2x-1
Step-by-step explanation:
y=mx+b
insert Point (0,-1)
-1 = m * 0 + b
-1 = b
slope:
m = delta y / delta x
m = 2 / 1
m = 2
that what
9 cm
27 / 3 =9 cm
The total periméter is 27 and it has 3 sides so just divide
it should be D