Ofcourse it is.
A tangent (usually known as the tanX f(x)) is the best example.
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When graphed, or written in the form [ y = f(x) ], the slope is -3 .
To function form. - 7X - 4Y = 16 - 4Y = 7X + 16 Y = - 7/4X - 4 ------------------------ The slope is, - 7/4 --------
This is not a function. To be a function, there must be a one to one relationship between the independent variable (usually represented by the horizontal or x axis) and the dependent variable (usually represented by the vertical or y axis). A line with undefined slope is a vertical line, so there are an infinite number of possibilities for y and only one possible value of x, so this is not a function.
A 1 in 40 slope means that for every 40 units of horizontal distance, there is a 1 unit rise. To convert this to degrees, you can use the arctangent function. The formula to convert slope to degrees is arctan(slope) = angle in degrees. Therefore, for a 1 in 40 slope, the angle in degrees would be approximately 1.43 degrees.
The formula for the slope of a line/curve is (y2 - y1)/(x2 - x1). If the line is written in the form y = mx + c, then m = slope and c = y-intercept Another way of finding the slope is by finding the derivative of the function wrt x.