Q. A line that includes the points (−3,j) and (0,3) has a slope of 2. What is the value of j?j=___
Use Slope Formula: To find j, we need to use the slope formula, which is (y2−y1)/(x2−x1). Here, we know the slope (m) is 2, and the points are (−3,j) and (0,3).
Apply Slope Formula: Plugging in the values, the slope formula becomes (3−j)/(0−(−3))=2. Simplifying the denominator, we get (3−j)/3=2.
Isolate j: To isolate j, first multiply both sides by 3: 3−j=6.
Solve for j: Now, solve for j: 3−6=j, which simplifies to j=−3.
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