That is a 30 60 90 triangle.
Read about those here: http://www.1728.org/trig2.htm
Y=mx+b
parallel lines will have the same slope.
using the points (-4,6) and the slope for the parallel line -3 we can find b (the y intercept) for the line.
6 = (-3)(-4) + b
6 = 12 + b
-12 + 6 = -12 + 12 +b
-6 = b
so the line that runs through points (-4,6) and parallel to y= -3x+4 is:
y = -3x -6
7) y = 4x
8) y = 7x/8
9) y = 25x/3
I think this are the answers.
Answer:
I think the answer would be -12