What are the three methods used to graph a linear equation?

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Methods to Graph Linear Equations
The three methods to graph linear equations are:
Construct a table of values: For a given linear equation in two variable, random values are given to any one of the variables and corresponding values of the other variable is calculated. A table is formed using these values and coordinate points are plotted and joined to get the line.

Slope-intercept method: The linear equation in two variables is rewritten in the slope-intercept form i.e., $y = m x + b$ , where $m$ is the slope and $c$ is the Y-intercept. The coordinate of the Y-intercept is $(0, c)$ . Find another point using the slope and Y-intercept as the reference points and join the points using a ruler.

Connecting X and Y intercepts: The X-intercept can be calculated by putting the value of $y = 0$ in the slope-intercept equation and the Y-intercept can be calculated by putting the value of $x = 0$ . The coordinate of the X-intercept is $(x, 0)$ and the coordinates of the Y-intercept is $(0, y)$ . The two intercept points are joined using a ruler.

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Dear Expert how will i know which method to use in solving a linear equation if they dont specify the method

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\begin{matrix} X & 6 & - 6 Y & - 2 & 6 \end{matrix}

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