Q. A line has a slope of −6 and includes the points (0,k) and (−3,10). What is the value of k?k = ____
Understand slope formula: Understand the slope formula.The slope of a line is calculated by the change in y divided by the change in x (rise over run). The formula for slope (m) when given two points ((x1,y1) and (x2,y2)) is:m=x2−x1y2−y1
Apply formula to points: Apply the slope formula to the given points and slope.We know the slope m is −6, one point is (−3,10), and the other point is (0,k). Plugging these into the slope formula, we get:−6=0−(−3)k−10
Solve for k: Solve for k.To find k, we need to solve the equation from Step 2:−6=3k−10Multiply both sides by 3 to isolate (k−10):−6×3=k−10−18=k−10Now, add 10 to both sides to solve for k:−18+10=k−8=k
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