Page 268 - Math Smart - 7

nevision

O Use the set of axes to plot each
set of given points on a piece of graph
paper. Draw a straight line through each
set of points and name each geometrical
shape that you get.
a) (-5,-1), (-3, 3), (-1,-1), (-5,-1)
b) (-1,3), (7, 3), (7,1), (-1,1), (-1,3) ■5
c) (-1,-3), (3,0), (5,0), (5,-2), (-1,-3) ,?
d) (-5, 8), (4, 7), (5, 5), (-3, 4), (-5, 8)

0 Given the equation 3'= 2v +5, 5 - 4 - 3 - 2 1 0 1 ( !
-
-1
find the value of v when
?
a) A = 1,
b) A = 6,

c) A = -2.
0 Given the equationy 3' = -5jc-2, find the value of y when
X-
a) X = -3, b) X 0, c) x= 15.

0 Given the equation >' = 120 - 3x, find the value of
a) y when x = 20 and b) X when v = 30.
0 This conversion graph shows the
Conversion from Euros to Baht
approximate conversion from
Euros (€) to Thai Baht (B) 200 --
a) Convert €2 to Thai Baht. 1
! 3
b) Convert €4.50 to Thai Baht.
150 /
c) Convert 8100 to Euros. /
d) Convert B200 to Euros.
100
/

50 /

-
1 \
- -
-»
Euros(€)

UNIT 11 Coordinate Geometry and Graphs