2. Let Δx be the error in the measurement of independent variable x and Δy is corresponding error in the measurement of dependent variable y. Then,
Δy = Absolute error in measurement of y( Δy / y) = Relative error in measurement of y( Δy / y) * 100 = Percentage error in measurement of y Monotonicity of Functions 1. Monotonic Function
A function f( x) is said to be monotonic on an interval( a, b), if it is either increasing or decreasing on( a, b).
2. Strictly Increasing Function
f( x) is said to be increasing in D1, if for every x1, x2 ∈ D1, x1 > x2 ⇒ f( x1) > f( x2). It means that there is a certain increase in the value of f( x) with an increase in the value of x.
3. Classification of Strictly Increasing Function