Example

Example: Graphing the Linear Function f(x)=3x1f(x) = -3x - 1

Consider the linear function f(x)=3x1f(x) = -3x - 1. To draw its graph, start by recognizing that it is written in slope-intercept form, f(x)=mx+bf(x) = mx + b. First, identify the slope as m=3m = -3 and the yy-intercept as b=1b = -1. By plotting the yy-intercept at (0,1)(0, -1) and applying the slope to locate an additional point, the entire straight line representing the function can be explicitly graphed on the coordinate plane.

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Updated 2026-04-24

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