\"slope\"\"

\

Since the line is raising the slope is positive.

\

Next, find the slope.

\

\"\"            

\

Substitute 4 for y2 , 1 for y1, 2 for x2, and -2 for x1 in slope formula.

\

\"\"

\

\"\"               (Product of two same signs is positive)

\

\"\"                     (Add: \"\")\"\"

\

Slope is positive and slope is \"\".