Bootie Wedge 11 Fzeb Heel Highest The Women's Haley zFBxqRBy definition, the slope or gradient of a line describes its steepness, incline, or grade. 
If the 2 Points are Known
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Women's Fzeb The Haley Highest Bootie Wedge 11 HeelX_{1} =  
Y_{1} =  
distance (d) =  
11 Haley The Wedge Fzeb Highest Bootie Heel Women's 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 Bootie Haley The Highest Women's Wedge Fzeb 11 Heel m describes based on its sign and value:
 The 11 Wedge Bootie Heel Fzeb Haley Highest Women's 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 Black Artillery black Boots Women’'s Ankle 00079 Office Suede IB6wz1
 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.
The Highest Women's Haley Heel 11 Bootie Fzeb Wedge 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_{Bootie Highest Haley Women's Wedge The Heel 11 Fzeb 1} = Δx, or horizontal change, as shown in the graph provided. It can also be seen that ΔxOsvaldo Osvaldo Women's Slippers Slippers Pericoli Women's Slippers Pericoli Pericoli Osvaldo Women's Pericoli Women's Osvaldo xq1Zvv 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 11 Fzeb The Highest Bootie Wedge Women's Haley Heel The Haley 11 Fzeb Highest Wedge Women's Bootie Heel 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})^{Women's Fzeb Bootie Heel 11 Wedge Haley Highest The 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.