Notes #12
Write Equations of Lines part 2
Write Equations of Lines part 2
(Section 2‐4)
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Recall…Point‐Slope Formula
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation of a line that passes through the given points.
Example 1
Example 1 (5 ‐2)
(5, 2) (2, 10)
(2 10)
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation of a line that passes through the given points.
Example 2
Example 2 Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation of a line that passes through the given points.
Example 3
Example 3 Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation of a line that passes through the given points.
Example 4
Example 4 Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation of the line. Example 5
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation of the line. Example 6
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation in standard form of the line that satisfies the given conditions. The values of A, B, and C should be integers.
Example 7
m = 5, b = 7
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation in standard form of the line that satisfies the given conditions. The values of A, B, and C should be integers.
Example 8
m 
2
, b = 1
3
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation in standard form of the line that satisfies the given conditions. The values of A, B, and C should be integers.
Example 9
m = 2; passes through (4, 5)
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation in standard form of the line that satisfies the given conditions. The values of A, B, and C should be integers.
Example 10
m 
2
; passes through (2, 8)
3
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation in standard form of the line that satisfies the given conditions. The values of A, B, and C should be integers.
Example 11
passes through (5, 4) and (0, 11)
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
Write an equation in standard form of the line that satisfies the given conditions. The values of A, B, and C should be integers.
Example 12
passes through
 1

  , 5 ÷

 2
and
3 
 ,5 ÷
4 
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
HW # 16 pg 102‐103 (27‐46 all)
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?
HW # 16 pg 102‐103 (27‐46 all)
Standard: Algebra 1 7.0
Essential Question: How do you write an equation of a line when you are only given 2 points?