The key features of the graph of this function include;
horizontal asymptote: y = 4.
initial value: 3.
domain: (-∞, ∞)
range: (-∞, 4).
In Mathematics and Euclidean Geometry, a horizontal asymptote is a horizontal line (y = b) where the graph of a function approaches the line as the input values (domain or independent value) approach negative infinity (-∞) to positive infinity (∞).
A range is the set of all real numbers that connects with the elements of a domain for any function, usually read from bottom to top.
A domain is the set of all real numbers (x-values) for which a particular relation or function is defined.
By critically observing the graph of this exponential function, we can logically deduce the following key features;
Horizontal asymptote: y = 4.
The y-intercept or initial value: 3.
domain: (-∞, ∞) or x ∈ R
range: (-∞, 4) or y