To convert the equation \( x + 2y = 4 \) from standard form to slope-intercept form (which is \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept), follow these steps:
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Start with the original equation: \[ x + 2y = 4 \]
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Isolate the \( y \)-term by subtracting \( x \) from both sides: \[ 2y = -x + 4 \]
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Divide every term by 2 to solve for \( y \): \[ y = -\frac{1}{2}x + 2 \]
Now the equation is in slope-intercept form.
Thus, the final result is: \[ y = -\frac{1}{2}x + 2 \]
Here, the slope \( m = -\frac{1}{2} \) and the y-intercept \( b = 2 \).