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LINEAR EQUATIONS IN 2 UNKNOWNS What’s in for today? What’s in for today? ? ? ? ? o Learn how to form linear equatio o Draw a graph using ordered pairs o Find solutions of linear equatio
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Linear Equations In 2 Unknowns Meaning Of Linear Equations

Jun 23, 2015

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Wei Qi
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Page 1: Linear Equations In 2 Unknowns Meaning Of Linear Equations

LINEAR EQUATIONS IN 2 UNKNOWNS

What’s in for today?What’s in for today?????

o Learn how to form linear equationo Draw a graph using ordered pairso Find solutions of linear equations.

Page 2: Linear Equations In 2 Unknowns Meaning Of Linear Equations

Have you ever seen this???

Page 3: Linear Equations In 2 Unknowns Meaning Of Linear Equations

COUNTRY STORY… …

Page 4: Linear Equations In 2 Unknowns Meaning Of Linear Equations

EXPLORATIVE ACTIVITY – (A)

How many can each plot of land produce?

39

How many can each plot of land produce?

22

Page 5: Linear Equations In 2 Unknowns Meaning Of Linear Equations

EXPLORATIVE ACTIVITY – (A)

If I have number of land, how many green peppers can I harvest?

Total number of

x

x39

If I have number of land, how many corns can I harvest?

Total number of

y

y22

Page 6: Linear Equations In 2 Unknowns Meaning Of Linear Equations

EXPLORATIVE ACTIVITY – (A)

Total number of and

yx 2239

?? ?Unknowns

Page 7: Linear Equations In 2 Unknowns Meaning Of Linear Equations

EXPLORATIVE ACTIVITY – (B)

2(a) Total number of baskets of vegetables

2s + t = 10 (b) 2 unknowns

Page 8: Linear Equations In 2 Unknowns Meaning Of Linear Equations

EXPLORATIVE ACTIVITY – (B)

(c)t s

10 0

6 2

4 3

0 5

Page 9: Linear Equations In 2 Unknowns Meaning Of Linear Equations

EXPLORATIVE ACTIVITY – (B)

2s + t = 10

Page 10: Linear Equations In 2 Unknowns Meaning Of Linear Equations

SUMMARY

satisfy the equation. lie on the straight line.

For a linear equation in two unknowns, solutions