$\"slope$ $\"\"$

Since the line is raising the slope is positive.

Next, find the slope.

$\"\"$

Substitute – 4 for y₂, 0 for y₁, – 3.5 for x₂, and 2.5 for x₁ in slope formula.

$\"\"$

$\"\"$ (Subtract: $\"\"$ )

$\"\"$ (Cancel common signs)

$\"\"$ (Simplify)

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

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