The equation \( y = mx + b \) represents a linear function. In this equation:
- \( y \) is the dependent variable.
- \( x \) is the independent variable.
- \( m \) is the slope of the line, which indicates the rate of change of \( y \) with respect to \( x \).
- \( b \) is the y-intercept, which is the value of \( y \) when \( x = 0 \).
The graph of a linear function is a straight line, and the slope can be positive, negative, or zero, indicating different types of relationships between \( x \) and \( y \).
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