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The standard form for linear equations in two variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. When an equation is given in this form, it's pretty easy to find both intercepts (x and y). This form is also very useful when solving systems of two linear equations.
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There are three major forms of linear equations: point-slope form, standard form, and slope-intercept form. We review all three in this article.
Learn how to convert linear equations from slope-intercept form to standard form with step-by-step instructions.
Review the standard and expanded forms of circle equations, and solve problems concerning them.
Learn how to graph any quadratic function that is given in standard form. Here, Sal graphs y=5x²-20x+15.
This video demonstrates converting large numbers from expanded and written form to standard form. Using the example "six hundred forty-five million five hundred eighty-four thousand four hundred sixty-two," it explains the process and arrives at 645,584,462, emphasizing place value understanding.
The standard form for linear equations in two variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. When an equation is given in this form, it's pretty easy to find both intercepts (x and y).
Sal finds the equation of a line that passes through (-3,6) and (6,0) in point-slope, slope-intercept, and standard form. Created by Sal Khan and Monterey Institute for Technology and Education. Video transcript
Review linear standard form and how to use it to solve problems.