Conversion Formula:
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This calculator converts linear equations from standard form (Ax + By + C = 0) to slope-intercept form (y = mx + b). The slope-intercept form makes it easy to identify the slope and y-intercept of a line.
The calculator uses the conversion formula:
Where:
Explanation: The equation is algebraically rearranged to solve for y, resulting in the slope-intercept form where the coefficient of x is the slope (m) and the constant term is the y-intercept (b).
Details: Different forms are useful for different purposes. Slope-intercept form is particularly valuable for graphing and quickly identifying key line characteristics.
Tips: Enter the coefficients a, b, and c from your standard form equation. The calculator will output the equivalent slope-intercept form. Note that b cannot be zero.
Q1: What if b is zero in standard form?
A: If b is zero, the equation represents a vertical line which cannot be expressed in slope-intercept form (since vertical lines have undefined slope).
Q2: How do I graph using slope-intercept form?
A: Plot the y-intercept (b) on the y-axis, then use the slope (m) to find another point (rise over run).
Q3: Can this calculator handle fractions?
A: Yes, you can enter fractional coefficients as decimals, or the calculator will simplify the equation.
Q4: What's the difference between standard and slope-intercept form?
A: Standard form is Ax + By + C = 0, while slope-intercept form is y = mx + b. Slope-intercept form explicitly shows slope and y-intercept.
Q5: Why would I need to convert between forms?
A: Different forms are better suited for different applications - standard form is good for finding intercepts, while slope-intercept is better for graphing.