Answer:
The first one 6 second 10
just got it right :)
Answer:

Step-by-step explanation:
To find the slope of the given line, slope is the rise divided by the run of a line.
Slope =
Picking points (4, 18) and (8, 12)
Now;
x₁ = 4
y₁ = 18
x₂ = 8
y₂ = 12
Slope =
=
= 
Answer:
Looks good to me
Step-by-step explanation:
I checked for an incorrect answer and it seems like you got everything right :)
It forms an acute angle.
The obtuse angle is greater than 90 degrees but less than180 degrees. So if a bisector is introduced, the resulting angle is acute. An acute is less than 90 degrees.