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# Topic 12 - form to develop the equation of a line when you...

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*MOVING BEYOND SLOPE AND Y-INTERCEPT* You now know three different forms for a linear function rule. Forms for the equation of a line Standard form Ax + By = C Slope-intercept form y = mx + b Point-slope form y - y 1 = m(x - x 1 ) Standard form can be useful for quickly determining the values for the x - and y -intercept. ** Forms for the equation of a line Standard form Ax + By = C Slope-intercept form y = mx + b Point-slope form y - y 1 = m(x - x 1 ) Slope-intercept form gives you information about the rate of change of the function. It also tells you the point at which the line will cross the y-axis. You can use slope-intercept

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Unformatted text preview: form to develop the equation of a line when you know the slope and the y-intercept. *** Forms for the equation of a line Standard form Ax + By = C Slope-intercept form y = mx + b Point-slope form y - y 1 = m(x - x 1 ) Point-slope form also gives you information about the rate of change. You can use point-slope form to develop the equation of a line when you know two points, or when you know one point and the slope. 1 2 3...
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