Q. A line with a slope of −9 passes through the points (2,0) and (3,j). What is the value of j?j = ____
Understand slope concept: Understand the concept of slope. The slope of a line is the ratio of the change in the y-coordinate to the change in the x-coordinate between two points on the line. The formula for slope (m) is given by: m=x2−x1y2−y1 Here, we are given the slope (m) as −9, and we have two points (2,0) and (3,j).
Plug in values: Plug in the known values into the slope formula.We know the slope m is −9, and we have the points (2,0) and (3,j). Let's denote (2,0) as (x1,y1) and (3,j) as (x2,y2). Plugging these into the slope formula gives us:−9=3−2j−0
Simplify equation: Simplify the equation to solve for j.−9=1jMultiplying both sides by 1 gives us:j=−9×1j=−9
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