We know the distance formula is

9)
Here A( -4,2) and B(1,4)
So length of AB
= 
Also C(2,1)
Length of BC
= 
So we can see that length of AB is not equal to length of BC
11.
Now AB = 
Also C(2,-1) & D(4,4)
Length of CD
= 
Yes AB = CD
Answer: 28.4375 is the correct answer Explanation: because in one month they grow 3.25 so in 8.75 months they grow 28.4375.
Answer:
#2: y-intercept=-2
Bottom left graph: Slope:4/2
y-intercept:-2
Equation: y=4/2x-2
Bottom right graph: Slope:-2
y-intercept:8
Equation: y=-2x+8
Its known as the signature line