Page 1
Q u e s t i o n : 8
Draw the graph of each of the following equations.
i
x = 4
ii
x + 4 = 0
iii
y = 3
iv
y = –3
v
x = –2
vi
x = 5
vii
y + 5 = 0
viii
Page 2
Q u e s t i o n : 8
Draw the graph of each of the following equations.
i
x = 4
ii
x + 4 = 0
iii
y = 3
iv
y = –3
v
x = –2
vi
x = 5
vii
y + 5 = 0
viii
y = 4
S o l u t i o n :
i
The equation of given line is x = 4. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point 4, 0
.
ii
The equation of given line is x + 4 = 0 or x = –4. This equation does not contain the term of y. So, the graph of this line is parallel
to y-axis passing through the point – 4, 0
.
iii
The equation of given line is y = 3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, 3
.
Page 3
Q u e s t i o n : 8
Draw the graph of each of the following equations.
i
x = 4
ii
x + 4 = 0
iii
y = 3
iv
y = –3
v
x = –2
vi
x = 5
vii
y + 5 = 0
viii
y = 4
S o l u t i o n :
i
The equation of given line is x = 4. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point 4, 0
.
ii
The equation of given line is x + 4 = 0 or x = –4. This equation does not contain the term of y. So, the graph of this line is parallel
to y-axis passing through the point – 4, 0
.
iii
The equation of given line is y = 3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, 3
.
iv
The equation of given line is y = –3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, – 3
.
v
The equation of given line is x = –2. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point – 2, 0
.
Page 4
Q u e s t i o n : 8
Draw the graph of each of the following equations.
i
x = 4
ii
x + 4 = 0
iii
y = 3
iv
y = –3
v
x = –2
vi
x = 5
vii
y + 5 = 0
viii
y = 4
S o l u t i o n :
i
The equation of given line is x = 4. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point 4, 0
.
ii
The equation of given line is x + 4 = 0 or x = –4. This equation does not contain the term of y. So, the graph of this line is parallel
to y-axis passing through the point – 4, 0
.
iii
The equation of given line is y = 3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, 3
.
iv
The equation of given line is y = –3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, – 3
.
v
The equation of given line is x = –2. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point – 2, 0
.
vi
The equation of given line is x = 5. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point 5, 0
.
vii
The equation of given line is y + 5 = 0 or y = –5. This equation does not contain the term of x. So, the graph of this line is parallel
to x-axis passing through the point 0, – 5
.
Page 5
Q u e s t i o n : 8
Draw the graph of each of the following equations.
i
x = 4
ii
x + 4 = 0
iii
y = 3
iv
y = –3
v
x = –2
vi
x = 5
vii
y + 5 = 0
viii
y = 4
S o l u t i o n :
i
The equation of given line is x = 4. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point 4, 0
.
ii
The equation of given line is x + 4 = 0 or x = –4. This equation does not contain the term of y. So, the graph of this line is parallel
to y-axis passing through the point – 4, 0
.
iii
The equation of given line is y = 3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, 3
.
iv
The equation of given line is y = –3. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, – 3
.
v
The equation of given line is x = –2. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point – 2, 0
.
vi
The equation of given line is x = 5. This equation does not contain the term of y. So, the graph of this line is parallel to y-axis
passing through the point 5, 0
.
vii
The equation of given line is y + 5 = 0 or y = –5. This equation does not contain the term of x. So, the graph of this line is parallel
to x-axis passing through the point 0, – 5
.
viii
The equation of given line is y = 4. This equation does not contain the term of x. So, the graph of this line is parallel to x-axis
passing through the point 0, 4
.
Q u e s t i o n : 9
Draw the graph of the equation y = 3x.
From your graph, find the value of y when
i
x = 2
ii
x = –2.
S o l u t i o n :
Given equation: y = 3x
When x = -2, y = -6.
When x = -1, y = -3.
Thus, we have the following table:
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