Q. A line with a slope of 10 passes through the points (7,d) and (6,−1). What is the value of d?d = ____
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−x1)(y2−y1) Here, we are given the slope (m) as 10, and we have two points (7,d) and (6,−1).
Plug values into formula: Plug the known values into the slope formula.Using the given slope and points, we can set up the equation:10=7−6d−(−1)
Simplify equation: Simplify the equation. 10=1(d+1)
Solve for d: Solve for d.To find d, we multiply both sides of the equation by 1 (which doesn't change anything since it's the multiplicative identity):10×1=d+110=d+1
Isolate variable d: Subtract 1 from both sides to isolate d.10−1=d9=d
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