Garfield wakes up and realizes his toy Pooky is missing. Odie left Garfield clues to solve math problems in order to find Pooky's location. Garfield solves problems involving slope, including finding the slope from points on a line and graph, and using the slope-intercept form of a line. After solving all the clues, Garfield retrieves Pooky. Mr. De Guzman then teaches the students about slope and how it describes the steepness of a line.

3. It was a typical Monday for Garfield.

4. He slept all day long, dreaming of him

5. in a carnival with Pooky, his bestfriend toy.

7. That was the best
rollercoaster ride
ever!

8. Hmm.. I wonder
where Pooky is.

9. Maybe I left him
on the bed again.

11. Where’s
Pooookkkyyyy?! I
left him on my bed
and now he’s
gone!

12. I knew it! That
Odie is making fun
out of me. And he
left a letter. How
sweet!

13. He said that the
only way I could
get Pooky back is
to play his game.
Darn!

14. What’s up pussy?! Wanna
play a game? I got one and
it is starting now. I got
your Pooky. Let me give you
a clue on how to get to my
next love letter that will tell
where Pooky is. But you
gotta need some
Mathematics skills. Here’s
the first clue:

15. Here are two points in a linear function.
Its slope will tell you the number of steps
you must take, 53O east of south from your
bedroom. You better get the answer fast or
else you wouldn’t get Pooky back!
(-7,18), (-10, -12)
(Click the paw print to return to Garfield)

16. Hmmm… that was
quite difficult. But I
think I can solve it.

17. Slope? What’s a slope?
Aahhh yes! It’s the lesson
Mr. De Guzman taught last
week.

18. He said that we should use
this formula in solving it.

19. First, determine y2,
y1, x2 and x1 in (-
7,18), (-10, -12) then
place the values in
to get m or the
slope.

20. In(-7,18), (-10,-12) y2
and y1 is the y-
coordinates of the
second and first
ordered pairs
respectively, which
are -12 and 18.

21. And the x2 and x1
are the x-
coordinates of the
second and first
ordered pairs
respectively, which
are -10 and 7.

22. That’s it! Therefore,
the slope is
10!

23. That means I
should take 10
steps from my
room, 53O east
of south.

24. From the
room, take
10 steps to
the
southeast!

25. Here it is! Another
love letter from my
dear best friend. Oh!
How sweet of him!

26. Congrats Pussy! You’ve got the first clue.
So now is the time for the next one.
Here’s a graph of a linear equation. Its rise
and run will tell the number of steps you’ll
take from here. Good luck!

27. (Click the paw print to return to Garfield)

28. Uhhh… A graph?!
It’s more difficult
than the first task.
But I’m pretty sure I
can solve this.

30. The length of those
broken lines is equal to
the steps I’ll take. It is
also the rise and the
run or the slope.

31. To get the slope, I need
to determine two points
on the line. And by
observation, we can see
that (-7,5) and (0,7) are
on the line.

32. We now have two points
and we can solve the
rise and run.
The slope is also known
as the rise over run so
the rise is 5 and run is
14.
-

33. That means I have to
take 14 steps to the
South (because of the
negative sign) and 5
steps to the east. But
due to the house’s
design, I need to take the
eastward steps first.

34. 5 steps to
the East
then 14
steps to
the south.

35. Oh yeah! I’m so close to
finding Pooky. Let’s
read Odie’s last love
letter for me.

36. Great job, little pussy. You have done the
first two clues and now here’s the last
clue. Consider the linear equation below.
Its slope is the number of eastward steps
you’ll take from here. I’M WISHING YOU
A LOT OF LUCK!
(Click the paw print
to return to Garfield)
0=-16X+2Y

37. This is an easy one!
In an equation, we
can solve for the
slope by using –a/b!
Piece of cake!

38. In the equation 0=-
16X+2Y, -16 is A and 2
is B. By using –A/B, we
get 8 as the slope.
Eureka!

39. Which means 8 steps to
the east!

41. Garfield has reached the place where Odie is waiting.
Hey Odie! I’ve solved all
of your challenges.
Enough already!
Where’s Pooky?
Alright! Chill! You
know that I was just
messing with you.
You’re good. Since
you have solved all my
challenges, here, take
your Pooky back.

42. Click to
retrieve
Pooky

45. Kids, let me discuss
SLOPE OF A
LINEAR
FUNCTION

46. In mathematics, the slope
or gradient of a line
describes its steepness,
incline, or grade.

47. It is the constant rate of
change of a linear function.

48. It can be though of as the
ratio of the vertical change
to the horizontal change
between two points on the
graph of a line.

49. If the two points are (x1,
y1) and (x2, y2), then the
vertical change is y2 - y1
and the horizontal change
is x2 - x1.

50. Hence, we use the
formula

51. Graph of f(x) = mx + b
Positive Slope
(the line rises
from left to right)

52. Graph of f(x) = -mx + b
Negative Slope
(the line falls
from left to right)

53. Graph of f(x) = b
Zero Slope
(horizontal line; passes
through the y-axis)

54. SUBMITTED TO:
Mr. Eric De Guzman
Credits to the maker
of Garfield the Movie
and Garfield Comics