Q. What is the slope of the line through (2,−2) and (9,3)? Choose 1 answer:(A) 75(B) −75(C) 57(D) −57
Identify the slope formula: Identify the slope formula.The slope of a line through two points (x1,y1) and (x2,y2) is given by the formula:Slope = x2−x1y2−y1
Substitute the given points: Substitute the given points into the slope formula.We have the points (2,−2) and (9,3), so x1=2, y1=−2, x2=9, and y2=3.Slope = 9−23−(−2)
Calculate the change in y: Calculate the change in y (y2−y1).Change in y = 3−(−2)=3+2=5
Calculate the change in x: Calculate the change in x x2−x1.Change in x = 9−2=7
Calculate the slope: Calculate the slope using the changes in y and x.Slope = Change in xChange in y=75
Match the calculated slope: Match the calculated slope to the correct answer choice.The calculated slope is 75, which corresponds to answer choice (A).