Page 170 - Mathematics_F1

8. Solve graphically each of the following linear simultaneous equations.
 x y−= − 3  2x y+= 7  y = 1 x + 4

(a)  (c)  (e)  2
 x + 2y = 3  2x − 5y = 4  y = 2x − 2

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32y+  − 3x = 0  y = 1 x + 1  y = 3x − 2 Tanzania Institute of Education

(b)  (d)  2 2 (f) 
5 y
x
 5x = +  y = − 1  y = + 2
x

9. Find the equation of the line in each of the following graphs.
(a) y (b) y
(-3, 2)

Gradient = -6

x
0 (1, 0)
y-intercept=-2 0 x

(c) y (d) y

(-2, 3)

x
0
3
Gradient = - 0 x
2
y-intercept=-3

10. Find graphically the solution of the following system of linear simultaneous
equations.

1
(a) 5y = 6x + 30 and y = x + 2
5
 x y = 1
(b)  2 +  2
1 y

 x = +
5
(c) 2x y−= and x = 1 y− Mathematics Form One

50
(d) 3x + 4y = 3 and 2x − 5y +=

163

25/09/2025 15:01:58
Mathematics form 1.indd 163 25/09/2025 15:01:58
Mathematics form 1.indd 163