2.11 - 2.13 - Algebra I

13/9

(-2, -5) and (7,8)

undefined

(-7, 8) and (-7, 5)

-1

(-9, -3) and (-7, -5)

-1/7

(15, 2) and (-6, 5)

1/5

(3, 9) and (-2, 8)

0

(5, 9) and (3, 9)

2

(6, -2) and (5, -4)

-7

(6, 3) and (7, -4)

-4

(7, -4) and (4, 8)

x-int: (6, 0) y-int: (0, 4)

2x + 3y = 12

x-int: (3, 0) y-int: (0, 2)

2x + 3y = 6

x-int: (6, 0) y-int: (0, 3)

2x + 4y = 12

x-int: (5, 0) y-int: (0, 2)

2x + 5y = 10

x-int: (3, 0) y-int: (0, 6)

2x + y = 6

x-int: (2, 0) y-int: (0, -2)

2x - 2y = 4

x-int: (5, 0) y-int: (0, -2)

2x - 5y = 10

x-int: (2, 0) y-int: (0, -4)

2x - y = 4

x-int: (10, 0) y-int: (0, 3)

3x + 10y = 30

x-int: (-4, 0) y-int: (0, -3)

3x + 4y = -12

x-int: (4, 0) y-int: (0, 3)

3x + 4y = 12

x-int: (5, 0) y-int: (0, 3)

3x + 5y = 15

x-int: (-3, 0) y-int: (0, -9)

3x + y = -9

x-int: (2, 0) y-int: (0, 6)

3x + y = 6

x-int: (-4, 0) y-int: (0, 3)

3x - 4y = -12

x-int: (4, 0) y-int: (0, -3)

3x - 4y = 12

x-int: (-3, 0) y-int: (0, 9)

3x - y = -9

x-int: (2, 0) y-int: (0, -6)

3x - y = 6

x-int: (5, 0) y-int: (0, 4)

4x + 5y = 20

x-int: (7, 0) y-int: (0, 4)

4x + 7y = 28

x-int: (2, 0) y-int: (0, 8)

4x + y = 8

x-int: (2, 0) y-int: (0, -8)

4x - y = 8

x-int: (6, 0) y-int: (0, 5)

5x + 6y = 30

x-int: (1, 0) y-int: (0, 5)

5x + y = 5

x-int: (6, 0) y-int: (0, -5)

5x - 6y = 30

x-int: (2, 0) y-int: (0, 4)

6x + 3y = 12

x-int: (1, 0) y-int: (0, 6)

6x + y = 6

x = 2

Find the zero: y = -10x + 20

x = 5

Find the zero: y = -5x + 25

x = 10

Find the zero: y = 100 - 10x

x = 50

Find the zero: y = 150 - 3x

x = 8

Find the zero: y = 200 - 25x

x = 4

Find the zero: y = 200 - 50x

x = 5

Find the zero: y = 40 - 8x

x = 5

Find the zero: y = 400 - 80x

x = 25

Find the zero: y = 50 - 2x

x = 6

Find the zero: y = 60 - 10x

find the x-intercept

Finding the zero means to

set y = 0 and solve for x

To find the x-intercept means to

-1

find the slope

-1/2

find the slope

-2

find the slope

-3/4

find the slope

-4

find the slope

0

find the slope

1

find the slope

1/3

find the slope

2/3

find the slope

3

find the slope

5/2

find the slope

x-int: (4, 0) y-int: (0, 2)

x + 2y = 4

x-int: (8, 0) y-int: (0, 2)

x + 4y = 8

x-int: (-1, 0) y-int: (0, -1)

x + y = -1

x-int: (1, 0) y-int: (0, 1)

x + y = 1

x-int: (2, 0) y-int: (0, 2)

x + y = 2

x-int: (3, 0) y-int: (0, 3)

x + y = 3

x-int: (5, 0) y-int: (0, 5)

x + y = 5

x-int: (6, 0) y-int: (0, 6)

x + y = 6

x-int: (7, 0) y-int: (0, 7)

x + y = 7

x-int: (8, 0) y-int: (0, 8)

x + y = 8

x-int: (9, 0) y-int: (0, 9)

x + y = 9

x-int: (4, 0) y-int: (0, -2)

x - 2y = 4

x-int: (1, 0) y-int: (0, -1)

x - y = 1

x-int: (2, 0) y-int: (0, -2)

x - y = 2

x-int: (3, 0) y-int: (0, -3)

x - y = 3

x-int: (5, 0) y-int: (0, -5)

x - y = 5