The slope of the line that passes through the points (-20,18) and (30,14) is
m (slope) = -2/25
Answer: B 163 degrees
Step-by-step explanation:
That's an obtuse angle, bigger than 90 degrees, so we read the appropriate upper scale for the angle.
The number is 21 because 2 is 1 doubled, and 2+1 is 3.
