Q. A line with a slope of −4 passes through the points (−7,w) and (−9,1). What is the value of w?w = ____
Identify Points and Slope: Identify the given points and the slope.Points: (−7,w) and (−9,1)Slope: −4We will use the slope formula which is (y2−y1)/(x2−x1) to find the value of w.
Apply Slope Formula: Apply the slope formula.−4=−9−(−7)1−wSimplify the denominator.−4=−9+71−w
Simplify Equation: Simplify the equation further.−4=−21−wMultiply both sides by −2 to isolate the term with w.−4×(−2)=−21−w×(−2)8=1−w
Solve for w: Solve for w.8=1−wAdd w to both sides.8+w=1Subtract 8 from both sides.w=1−8w=−7
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