SFR Lesson Notes The Winston Churchill School
Equations of Straight Lines  Algebra
Equation Straight Line through 2 points
November 25, 2011
Draw the graphs of; y = 2x + 3 y‐x=4
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1
Equation Straight Line through 2 points
November 25, 2011
Draw the graphs of; y = 2x + 3 y‐x=4
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2
Equation Straight Line through 2 points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points Success Criteria: Can find the gradient given two coordinates on the line ‐ B Can find the y‐intercept given the gradient and one coordinate ‐ B
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3
Equation Straight Line through 2 points
Finding the gradient
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November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
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Equation Straight Line through 2 points
Finding the gradient
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November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
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Equation Straight Line through 2 points
Finding the gradient
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November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
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Equation Straight Line through 2 points
Finding the gradient 2. By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(0,2) and (2,6)
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Equation Straight Line through 2 points
Finding the gradient 2. By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(1,2) and (3,22)
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8
Equation Straight Line through 2 points
Finding the gradient 2. By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(2,5) and (5,17)
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Equation Straight Line through 2 points
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Finding the y‐intercept By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(0,3) and (2,7)
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Equation Straight Line through 2 points
Finding the y‐intercept By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(0,4) and (3,1)
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Equation Straight Line through 2 points
Finding the y‐intercept By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(0,1) and (5,26)
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Equation Straight Line through 2 points
Finding the y‐intercept By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(2,5) and (5,17) 1. Find the gradient
2. Substitute in what you do know
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Equation Straight Line through 2 points
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November 25, 2011
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Equation Straight Line through 2 points
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November 25, 2011
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Equation Straight Line through 2 points
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November 25, 2011
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Equation Straight Line through 2 points
Finding the y‐intercept By looking at two points
November 25, 2011
Learning Objectives Can write an equation of a straight line through two points
(2,1) and (4,3) 1. Find the gradient
2. Substitute in what you do know
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17
Equation Straight Line through 2 points
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November 25, 2011
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