Transcript EMSA Revision 2012 Grade 9 - math

‫‪EMSA Revision 2012‬‬
‫‪Grade 9‬‬
‫مراجعة اإلمسا‬
‫الصف التاسع‬
EMSA revisio
The Slope Formula
B ( x2 , y2 )
A ( x1 , y1 )
y2  y1
m
x2  x1
x2 y2
x1 y1
Graph (3,2) and (-1,-1)
We can find
the slope using
the formula :
rise
m
run
3
m
4
run
4
rise
3
y2  y1
m
x2  x1
1  2
m
1  3
3
m
4
3
m 
4
Worksheet ( 1 )
Zayed althani school
Math department
Mohamad badawi : [email protected]
‫استخدم قانون الميل لتجد ميل المستقيم المار بأزواج‬
: ‫النقاط التالية‬
Use the gradient formula to find the slope of the line
that passes through the following pair of points
( -1 , 3 ) & ( 0 , -2 )
m
( 4 , - 3 ) & ( -1 , -2 )
m
(4,2)&(-4,2)
(-4,5)&(-4,1)
m
m
Worksheet ( 2 )
Complete :
‫أكمل‬
Zayed althani school
Math department
( Note : L1⫽ L2 & L3 ⟘ L4 )
Slope of L1 =
Slope of L3 =
Slope of L2 =
Slope of L4 =
Mohamad badawi : [email protected]
Slope of L3 × Slope of L4 =
L1
L2
L4
×
=
L3
: ‫استنتاج‬
: ‫استنتاج‬