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Guides, formulas, and worked examples.
How to Graph a Linear Equation
Plot the y-intercept, step the slope as rise over run, and draw the line. Worked example with y = 2x + 1, plus standard form and common mistakes.
How to Graph a Parabola
Find the vertex, axis, and roots, then sketch the curve. Worked example with y = x² − 4, roots at x = ±2, plus common mistakes.