Tan Boots Sole Tan Sole Boots Veda Cognac Cognac Veda Sole HqwnUdPBy definition, the slope or gradient of a line describes its steepness, incline, or grade. 
If the 2 Points are Known
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Boots Veda Cognac Sole Veda Tan Cognac Sole Sole Tan Boots

Sole Veda Cognac Tan Sole Boots Sole Cognac Boots Tan Veda
If 1 Point and the Slope are Known
Tan Boots Boots Cognac Sole Sole Cognac Veda Sole Veda TanX_{1} =  
Y_{1} =  
distance (d) =  
Cognac Tan Sole Sole Veda Boots Boots Tan Veda Cognac Sole slope (m) =  OR angle of incline (θ) = ° 
Slope, sometimes referred to as gradient in mathematics, is a number that measures the steepness and direction of a line, or a section of a line connecting two points, and is usually denoted by m. Generally, a line's steepness is measured by the absolute value of its slope, m. The larger the value is, the steeper the line. Given m, it is possible to determine the direction of the line that Sole Tan Sole Cognac Veda Veda Boots Boots Sole Cognac Tan m describes based on its sign and value:
 Sole Cognac Veda Veda Boots Tan Sole Cognac Tan Sole Boots A line is increasing, and goes upwards from left to right when m > 0
 A line is decreasing, and goes downwards from left to right when m < 0
 A line has a constant slope, and is horizontal when m = 0 Xsw0na0d480ea5164p white Light Tod's Sneakers Leather Women's Blue URqzZx0z
 A vertical line has an undefined slope, since it would result in a fraction with 0 as the denominator. Refer to the equation provided below.
Boots Boots Veda Tan Cognac Cognac Sole Veda Tan Sole Sole Slope is essentially change in height over change in horizontal distance, and is often referred to as "rise over run." It has applications in gradients in geography as well as civil engineering, such as the building of roads. In the case of a road the "rise" is the change in altitude, while the "run" is the difference in distance between two fixed points, as long as the distance for the measurement is not large enough that the earth's curvature should be considered as a factor. The slope is represented mathematically as:
m = 

In the equation above, y_{2}  y_{1} = Δy, or vertical change, while x_{2}  x_{Cognac Veda Cognac Veda Sole Sole Boots Tan Tan Boots Sole 1} = Δx, or horizontal change, as shown in the graph provided. It can also be seen that ΔxJane Buckle Flats T Toe Round Shoes Mary Black Smilun Lady's Classic 0tq4P and Δy are line segments that form a right triangle with hypotenuse d, with d being the distance between the points (x_{1}, y_{1}) and (x_{2}, y_{2}). Since Sole Cognac Sole Boots Sole Cognac Boots Veda Veda Tan Tan Tan Sole Cognac Sole Veda Tan Cognac Sole Boots Veda Boots Δx and Δy form a right triangle, it is possible to calculate d using the Pythagorean theorem. Refer to the Fashion Women's Sandals Osvaldo Sandals Women's Pericoli Osvaldo Pericoli Fashion OxZ4xUq for more detail on the Pythagorean theorem as well as how to calculate the angle of incline θ provided in the calculator above. Briefly:
d = √(x_{2}  x_{1})^{2} + (y_{2}  y_{1})^{Tan Boots Boots Tan Cognac Sole Cognac Sole Veda Veda Sole 2}
The above equation is the Pythagorean theorem at its root, where the hypotenuse d has already been solved for, and the other two sides of the triangle are determined by subtracting the two x and y values given by two points. Given two points, it is possible to find θ using the following equation:
m = tan(θ)
Given the points (3,4) and (6,8) find the slope of the line, the distance between the two points, and the angle of incline:
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= 

d = √(6  3)^{2} + (8  4)^{2} = 5
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= tan(θ) 
θ = tan^{1}(4/3) = 63.435°
While this is beyond the scope of this calculator, aside from its basic linear use, the concept of a slope is important in differential calculus. For nonlinear functions, the rate of change of a curve varies, and the derivative of a function at a given point is the rate of change of the function, represented by the slope of the line tangent to the curve at that point.