Q. What is the slope of the line through (6,9) and (7,1) ?Choose 1 answer:(A) 8(B) −8(C) 81(D) −81
Identify slope formula: Identify the slope formula.The slope of a line passing through two points (x1,y1) and (x2,y2) is given by the formula:Slope = x2−x1y2−y1
Substitute given points: Substitute the given points into the slope formula.We have the points (6,9) and (7,1), so x1=6, y1=9, x2=7, and y2=1.Slope = 7−61−9
Calculate change in y: Calculate the change in y y2−y1.Change in y = 1−9=−8
Calculate change in x: Calculate the change in x x2−x1.Change in x = 7−6=1
Calculate slope: Calculate the slope using the changes in y and x.Slope=1−8=−8