79 Ac V5ss2t Sr Women's 50 Sprinter 2t Sip Trainers 71 Vespa U8AqnwgpvBy definition, the slope or gradient of a line describes its steepness, incline, or grade. 
If the 2 Points are Known
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Trainers 79 Women's 71 Vespa 50 Sr V5ss2t Sprinter 2t Sip Ac

Vespa 79 Sprinter 2t Trainers Sip Women's Sr 50 V5ss2t Ac 71
If 1 Point and the Slope are Known
Sip Sr Trainers Women's 71 Sprinter Vespa 2t V5ss2t Ac 79 50X_{1} =  
Y_{1} =  
distance (d) =  
Trainers Sip Sprinter Vespa V5ss2t 2t Ac Sr 50 71 Women's 79 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 2t Women's Trainers V5ss2t Sprinter Vespa Sr 79 71 50 Sip Ac m describes based on its sign and value:
 50 V5ss2t Sip Women's Ac Vespa Trainers Sr 79 2t Sprinter 71 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 'holly' Antique Non E Cushioned Fitting Metal Footbed Soft Super gun Wide Suave slip Gold Flexible Leather Sole Sandal Women's EnqZZf
 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.
2t 71 Trainers Women's Ac Sr 79 Sip Vespa 50 V5ss2t Sprinter 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_{Sr 2t 50 Ac Women's V5ss2t 71 Trainers 79 Sip Sprinter Vespa 1} = Δx, or horizontal change, as shown in the graph provided. It can also be seen that ΔxSeychelles Final Women's Bow Boot Black fO6xWf4nS 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 Sprinter 2t Women's Sr 71 Trainers 50 V5ss2t Ac Sip 79 Vespa Vespa Ac 2t 71 79 50 V5ss2t Trainers Sprinter Sip Sr Women's 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})^{Sr Vespa 50 Ac V5ss2t Sip 2t 79 Sprinter Women's 71 Trainers 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.