Q. A line that includes the points (−9,n) and (−8,8) has a slope of 3. What is the value of n?n=___
Identify formula for slope: Identify the formula for the slope between two points.The slope formula is (y2−y1)/(x2−x1). Here, we know the slope m=3, x1=−9, y1=n, x2=−8, and y2=8.
Substitute known values: Substitute the known values into the slope formula.3=−8+98−n3=18−n
Solve for n: Solve for n.3=8−nn=8−3n=5
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