# Graphing Systems

## 27 Video Interactions

1. 00:00:41

What is slope intercept form?

• Ax+By=C
• y=mx+b

2. 00:01:12

How would I write the y-intercept as an ordered pair?

• (0, 4)
• (4,0)

3. 00:01:47

Will be...

• -2

4. 00:02:14

Which way will I go?

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5. 00:04:07

How many lines on one graph?

6. 00:04:59

Is...

• (5, 0)
• (0, 5)

7. 00:05:19

How will I move?

• rise 2
• Run 2
• run 1
• run 0
• rise 1

8. 00:06:42

And then...

• rise 4
• rise -4
• run -4
• run 1

9. 00:07:43

Extend the graph and see where they intersect before you move on.

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10. 00:08:10

Where do they intersect?

• (1, 3)
• (-1, 3)
• (3, -1)

11. 00:09:07

What is the solution?

• (-1, 3)
• (1, -3)
• (3, -1)

12. 00:09:29

What do you think it means?

____________________________

13. 00:10:06

Solve it for y. You get...

14. 00:10:27

Solve it for y. You get...

• -3
• -5

15. 00:12:10

Write the problem down.

____________________________

16. 00:13:03

What letter stands for extra points?

17. 00:13:08

What stands for field goals?

18. 00:13:45

How many?

19. 00:13:47

How many?

20. 00:15:13

What is the slope and y-intercept?

• slope is -1
• y-intercept is 8
• slope is 8
• y-intercept is -1

21. 00:15:38

How do you get rid of the 3?

• multiply by 3
• divide by 3
• subtract 3

22. 00:16:23

What is the slope and y-intercept?

• slope is -1/3
• y-intercept is 4
• slope is 4
• y-intercept is -1/3

23. 00:16:52

Just watch, don't graph.

____________________________

24. 00:18:44

Do both the 1 and the 3 get the negative sign?

• Yes
• No

25. 00:19:20

Ordered pair is...

• (6, 2)
• (2, 6)

26. 00:20:05

So how many extra points did he make?

____________________________

27. 00:22:34

What is the solution to a system of equations?

• where one line crosses the y axis
• where the two lines intersect
• always at the same point no matter what problem

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