2-2 notes

# 2-2 notes - Point Slope Form- ) ( 1 1 x x m y y-=-Example...

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Section 2-2 – Linear Equations Warm up Graph. Label your y-intercept: 1) 5 3 2 + - = x y A Linear Function is any function whose graph is a line. (Can also be represented with a Linear Equation ) The solution to a linear equation is _________________________. ( x , y ) Standard Form of a linear equation C By Ax = + We can graph equations in standard form by finding the x – intercept and the y – intercept .

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Example 1: The equation 120 2 3 = + y x models the number of passengers who can sit in a train car, where x is the number of adults and y is the number of children. Graph the equation and describe the domain and the range. Slope – (many different formulas!) Example 2: Finding slope Find the slope of the line through the points (3, 2) and ( –9, 6) How could we write the equation of the line from example 2?

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Unformatted text preview: Point Slope Form- ) ( 1 1 x x m y y-=-Example 3: Write the equation of the line passing through the points (3, 2) and ( –9, 6). Then write the equation in slope intercept and standard form. How could we find the slope of the following line: 7 3 4 = + y x ? Example 4: Find the slope for each line: a) y = 4 b) x = -2 Let’s summarize what we know about the slopes of vertical and horizontal lines. A) Horizontal B) Vertical Slope: Slope: y = x = C) Parallel Lines D) Perpendicular lines Slope: Slope: 2 1 b b ≠ Example 5 : Write the equation of the line perpendicular to 2 4 3 + = x y and passing through the point (0, 4). Using Point slope form Using Slope-intercept form...
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## This note was uploaded on 05/13/2011 for the course MTH 98 taught by Professor Johnson during the Fall '09 term at Grand Valley State.

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2-2 notes - Point Slope Form- ) ( 1 1 x x m y y-=-Example...

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