Section 2.4

Section 2.4 - 1)Vertical, passing through (4, -5)...

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Section 2.4 Equations of Lines and Linear Models 1
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Point-Slope Form Any equation y – y 1 = m(x – x 1 ) has a graph that is a straight line. It passes through (x 1 , y 1 ) and has slope m. Any equation of the form y – y 1 = m(x – x 1 ) is said to be written in point-slope form. 2
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Use the labeled point and the slope to find the slope-intercept form of the line. 3
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Equations of Horizontal and Vertical Lines The equation of a horizontal line with y-intercept b is y = b . The equation of a vertical line with x -intercept h is x = h . 4
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Find the equation of a line satisfying the given conditions.
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Unformatted text preview: 1)Vertical, passing through (4, -5) 1)Horizontal passing through (-2, -6) 5 Parallel and Perpendicular Lines Two lines with the same slope are parallel . If two lines have slopes m 1 and m 2 such that m 1 m 2 = -1, then they are perpendicular . 6 Find the slope intercept form of the line satisfying the given conditions. 1)Passing through (1/2, -1) and parallel to the line passing through (1,-4) and (-3, 1). 1)Perpendicular to passing through (-2, -3) ( 29 3 2 1 4 y x =-+ 7...
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Section 2.4 - 1)Vertical, passing through (4, -5)...

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