Find the slope of a line that passes through (-10,-1) and (5,-4).
A. -3
B. 1/3
C.1
D. -1/5
The slope of a line passing through two points is given by the formula:
slope = (y2 - y1) / (x2 - x1)
Using the given points (-10, -1) and (5, -4), we can substitute the values into the formula to find the slope:
slope = (-4 - (-1)) / (5 - (-10))
= (-4 + 1) / (5 + 10)
= -3 / 15
= -1/5
Therefore, the slope of the line passing through the points (-10, -1) and (5, -4) is -1/5.
The correct option is D. -1/5.