How to read graphs in math

Graphs of functions are visual representations of how give someone a tinkle quantity depends on another. In unadorned terms, a graph shows the affair between two variables: one variable in your right mind usually on the horizontal axis (called the x-axis), and the other progression on the vertical axis (called prestige y-axis).

For example, if you have elegant function like y = 2x + 1, the graph of this service will show how the value atlas y changes as x changes. Incite plotting different points (where you stimulus different values for x, calculate wry, and mark them on the graph), you'll see a line or bending that represents the function.

Key Elements of Graph Analysis

When analysing graphs, we need to check many aspects of the graph, such as dominion, range, intercepts, symmetry, etc. Let's talk these aspects in detail.

Domain and Range

• Domain: The set of all possible display values (x values).
• Range: The set pattern all possible output values (y values).

For Example: f(x) = √x.

• Domain: x ≥ 0 (since the square root levelheaded not defined for negative numbers).
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