Q. A line with a slope of 3 passes through the points (6,c) and (4,−7). What is the value of c?c = ____
Understand problem and formula: Understand the problem and the formula for the slope of a line.The slope of a line is given by the formula: slope m = x2−x1y2−y1, where (x1,y1) and (x2,y2) are two points on the line.We are given the slope m=3 and one point (4,−7). We need to find the y-coordinate c of the other point (6,c).
Plug known values into formula: Plug the known values into the slope formula to create an equation.Using the slope formula with the given slope m=3 and the points (6,c) and (4,−7), we get:3=6−4c−(−7)
Simplify equation and solve: Simplify the equation and solve for c.3=2c+7Now, multiply both sides by 2 to isolate c on one side of the equation:2×3=c+76=c+7
Subtract to find value: Subtract 7 from both sides to find the value of c. 6−7=c−1=c
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