Page 158 - Mathematics

Thus, the y-intercept is (0, –2).
For x-intercept, y = 0. It implies that
2x + 60=
x = − 3

Thus, the x-intercept is (–3, 0).
Draw a straight line passing through the x and y-intercepts to obtain the graph

of the given equation as shown in the following figure.

y
3
Tanzania Institute of Education
2

1

A(-3, 0)
-4 -3 -2 -1 0 1 x

-1
2x + 3y + 6 = 0
B(0, -2)
-2

-3

Example 6.29

Use x and y-intercepts to sketch the graph of 2x− + 5y = 10.

Solution
Given the equation 2x− + 5y = 10.
For y-intercept, set x = 0. It implies that,

y = 10
5y =

Mathematics Form One Thus, the y-intercept is (0, –2).
2
0. It implies that,
For x-intercept, y =

10
2x−
=

5
x = −
Thus, the x-intercept is (–5, 0).
152

25/10/2024 09:52:01
Mathematics form 1.indd 152 25/10/2024 09:52:01
Mathematics form 1.indd 152