Answer:
y = -2x + 6
Step-by-step explanation:
Slope = (-4 - 8)/(5 + 1)
= -12/6
= -2
Equation
y - 8 = -2(x + 1)
y - 8 = -2x - 2
y = -2x + 6 <-----------slope-intercept form
B X Intercpt and the y intercep
Answer:

Since the angle between the two vectors is not 180 or 0 degrees we can conclude that are not parallel
And the anfle is approximately 
Step-by-step explanation:
For this case first we need to calculate the dot product of the vectors, and after this if the dot product is not equal to 0 we can calculate the angle between the two vectors in order to see if there are parallel or not.
a=[1,2,-2], b=[4,0,-3,]
The dot product on this case is:

Since the dot product is not equal to zero then the two vectors are not orthogonal.
Now we can calculate the magnitude of each vector like this:


And finally we can calculate the angle between the vectors like this:

And the angle is given by:

If we replace we got:

Since the angle between the two vectors is not 180 or 0 degrees we can conclude that are not parallel
And the anfle is approximately 
It should be a 80 degrees.