Ax + By = C
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The standard form of a linear equation in n variables is a1x1 + a2x2 + ... + anxn = b. The ai and b are constants and the xi are variables.
The y-intercept is c in the standard form. The x-intercept is -c/m.
A linear equation can be written in many different forms. Two forms are used frequently. ax+by=c is standard form as y=mx+b is slope intercept form.
It is a straight line equation that can be simplified to: y = 3x-9
To identify the slope in a linear equation, rearrange the equation into the form y = mx + b. The term m is the slope.