Linear Function Graph - Slope, Y-Intercept, and Range Explained #3643555 (License: Personal Use)

The image displays the standard form of a linear function, f(x) = mx + b, labeling the slope (m) and y-intercept (b). On the right, a Cartesian grid shows a straight line passing through the y-axis at b, with arrows indicating the function’s domain extends infinitely in both x-directions and its range covers all real numbers (-∞ to +∞). The red vertical arrow explicitly marks the unbounded range.

Used in algebra education materials, online math tutorials, or Khan Academy-style lessons to teach foundational function concepts; matches user intent for visual learners seeking to grasp linear equations, graph interpretation, and domain/range analysis.