$\"slope$ $\"\"$

Since the line is raising the slope is positive.

Next, find the slope.

$\"\"$

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

$\"\"$

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

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

$\"\"$ (Cancel common terms ) $\"\"$

Slope is positive and slope is $\"\"$ .