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Lesson 5.3- Slope Intercept Form, pg. 272Goals: To write and graph linear equations in slope-intercept form. To model real-world data with an equation in slope-intercept form.
Slope-Intercept Form The linear equation y = mx + b is written in slope-intercept form, where m is the slope and b is the y-intercept. Y = mx + b slope Y-intercept
Ex. 1: Write an equation given slope and y-intercept
slope: 0.5 y-intercept: 7.5 slope: 8 y-intercept: -3 slope: 4 y-intercept: -2 slope: -1 y-intercept: -7
Ex. 2: Write an equation of the line shown in each graph.1. y x 5 -5
2. y x 5 -5
3. y x 5 -5
Ex. 3: Graph the equation. 1. y = x - 2 y x 5 -5
2. y = -x + 2 y x 5 -5
3. y = -1/3x - 3 y x 5 -5
4. 2x – y = -3 y x 5 -5
5. 4x – 3y = 3 y x 5 -5
Ex. 3: Write a linear equation in slope-intercept form to model the situation.An auto repair shop charges $50 plus $25 per hour. Y = mx + b
2. The temperature is 15° and is expected to fall 2° each hour during the night.Y = mx + b
A computer technician charges $75 for a consultation plus $35 per hour.Y = mx + b
Objective - To graph linear equations using the slope and y-intercept.
Slope-Intercept Form of a Linear Equation. Is this a linear equation? 3x + 2y = 6.
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The table and graph suggest another method of graphing a linear equation. This method is based on two numbers. The SLOPE This is the coefficient of x.
5.1 Slope-Intercept Form OBJECTIVE 1 : Use slope-intercept form to write an equation of a line. Slope-Intercept Form: The slope-intercept form of the equation.
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Lesson 1.e: write and graph linear equations using slope intercept form After this lesson you will be able to… Write the equation of a line in slope-intercept.
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Holt McDougal Algebra Slope-Intercept Form Warm Up Find each y-intercept. 1. y = 3x x – 3y = 12 Find each slope x + 2y = x.
3-5 LINES IN THE COORDINATE PLANE M11.B A OBJECTIVES: 1)TO GRAPH LINES GIVEN THEIR EQUATIONS 2) TO WRITE EQUATIONS OF LINES.
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Writing an Equation of a Line
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Writing equations given 2 points on the line. Write the equation of the line that goes through the points (1, 6) and (3, -4) m = y₂ - y₁ x₂ - x₁ -4 -
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Warm up Write the slope and y-intercept for the following linear functions 1.y = 4x – 6 2.y = -3x y = 4 – 2x 4.y = 1/3x y = -2/3x.
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