Assuming the function is linear, the direction of the function can be determined by the coefficient's sign:
[y = mx + b]
Where m is the coefficient of x, if m is negative, then the function is increasing. If m is positive, the function is decreasing (this relationship is rather complicated and requires advanced calculus to prove).
It shows whether, and how steeply, the terrain or function is increasing or decreasing.
The intervals are determined by when the derivative is positive or negative, because the derivative is the slope and a negative slope means the function is decreasing. The function y=(x/sqrt(x2))+1, however, can be rewritten as y=x/absolutevalue(x) + 1, and as such will be represented as a pair of parallel lines, y=0 for x<0 and y=2 for x>0. As the lines are horizontal, the function is never increasing or decreasing.
Increasing.
If the gradient is a positive number the curve is increasing, and if the gradient is a negative number it is decreasing.
A continuous linear decreasing function is a line that goes on forever and has a negative slope (is downhill from left to right). For example, the line y = -x is a continuous linear decreasing function.
It depends on the function.
Neither, by definition.
The slope of a linear function is also a measure of how fast the function is increasing or decreasing. The only difference is that the slope of a straight line remains the same throughout the domain of the line.
You take the derivative of the function, then solve the inequality:derivative > 0 for increasing, orderivative < 0 for decreasing.
A linear function is increasing if it has a positive slope. To find this easily, put the function into the form y=mx+b. If m is positive, the function is increasing. If m is negative, it is decreasing.
It shows whether, and how steeply, the terrain or function is increasing or decreasing.
waxing is growing and waning is decreasing
No. Although it is increasing most of the time, it is decreasing between x=-1 and x=1.
Points: (2, 3) and (-1, 6) Slope: -1 therefore it is decreasing
It is decreasing
Decreasing
Decreasing.