What is the constant function graph? The constant function can be understood as a particular case of a first degree function, such as the affine function f(x) = ax + b, when a = 0. A constant function is a function of f : ℝ→ℝ defined as f(x) =C. It’s general form can be written as f(x) = C, where C is a real constant.
What does the constant function graph looks like?
The graph of a constant function in the form f(x) = C is a horizontal straight line that will always intercept the y-axis at the point (0, C).
For example, given the function f(x) = 2, the graph will intercept the y-axis at the point (0, 2), as the image below shows.
