Q. A line has a slope of −9 and includes the points (−6,3) and (−5,v). What is the value of v?v = ____
Set up equation using slope: To find the value of v, we need to use the slope formula, which is (change in y) / (change in x). The slope of the line is given as −9, and we have the coordinates of two points on the line: (−6,3) and (−5,v). We can set up the equation using the slope and the coordinates of the points.
Write equation for slope: The slope of the line is the same between any two points on the line. So, we can write the equation for the slope as follows:−9=−5−(−6)v−3
Simplify denominator: Simplify the denominator of the fraction on the right side of the equation:−9=−5+6v−3
Simplify equation: Now we have:−9=1v−3This simplifies to:−9=v−3
Add 3 to both sides: To find the value of v, we add 3 to both sides of the equation:−9+3=v−3+3
Find value of v: Simplify the equation to find the value of v:−6=v
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