Answer:
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Explanation:
The slope-intercept form of the line is:

Where m is the slope and b the intersection with the y-axis.
You can see in the graph that line intersect the y-axis at
, then:

Choose two points and substitute them into the formula for calculate the slope. This is:

Let's pick the points (-4,4) and (-6,8). The the slope is:

Substituting into the equation, you get:
