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Lesson 3-4 Equations of Lines
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Ohio Content Standards:
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Recognize and apply angle relationships in situations involving intersecting lines, perpendicular lines and parallel lines.
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Ohio Content Standards: Solve and graph linear equations and inequalities.
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Ohio Content Standards: Write and use equivalent forms of equations and inequalities in problem situations; e.g., changing a linear equation to the slope-intercept form.
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Ohio Content Standards: Describe and interpret rates of change from graphical and numerical data.
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Ohio Content Standards: Recognize and explain that the slopes of parallel lines are equal and the slopes of perpendicular lines are negative reciprocals.
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Slope-Intercept Form
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y = mx + b, where m is the slope of the line and b is the y-intercept.
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Point-Slope Form
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y – y 1 = m (x – x 1 ), where (x 1, y 1 ) are the coordinates of any point on the line and m is the slope of the line.
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Write an equation in slope- intercept form of the line with slope of 6 and y-intercept of -3.
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Write an equation in point-slope form of the line whose slope is -3/5 that contains (-10, 8).
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Write an equation in slope- intercept form for a line containing (4, 9) and (-2, 0).
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Write an equation in slope-intercept form for a line containing (1, 7) that is perpendicular to the line y = -1/2 x + 1.
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An apartment complex charges $525 per month plus a $750 security deposit.
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Write an equation to represent the total annual cost A for r months of rent.
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Assignment: Pgs. 148-150 16-42 evens, 56-70 evens
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