To calculate the slope of a line that passes through two points, we use the slope formula:
Slope (m) = (y2 – y1) / (x2 – x1)
In this case, we have two points: (1, 5) and (4, 1). We can assign:
- (x1, y1) = (1, 5)
- (x2, y2) = (4, 1)
Now, we can plug these values into the slope formula:
m = (1 – 5) / (4 – 1)
Now, performing the calculations:
- y2 – y1 = 1 – 5 = -4
- x2 – x1 = 4 – 1 = 3
Substituting these values back into the formula gives us:
m = -4 / 3
Therefore, the slope of the line that passes through the points (1, 5) and (4, 1) is -4/3.
This means that for every 3 units you move to the right along the x-axis, you will move down 4 units along the y-axis. The negative slope indicates that the line is descending from left to right.