Answer:
(-1/3; 4)
Step-by-step explanation:
(-2, -1) , (-1, 6 ) and (2, 7).
x=(-2-1+2)/3= -1/3
y=(-1+6+7)/3=12/3=4
=> (-1/3; 4)
Answer:

Step-by-step explanation:

Your answer is the bottom left one. All you have to do is plug in the equation into your calculator and press enter, and you will get 1.925595238E14. The little E is also 10 with a large variable.
Answer:
y=2x+2
Step-by-step explanation:
Remember that parallel lines have equal slopes. We can solve this using point slope form which is 
Plug in the point (0,2) into the equation:
y-2=m(x-0)
Also plug in the slope which is the same as line EF (m=2)
y-2=2(x-0)
Simplify:
y-2=2x
Add 2 to both sides:
y=2x+2