Page 90 - BUKU ModMATHS F4 MODUL 1 2018

GARIS LURUS
THE STRAIGHT LINES
B. PERSAMAAN GARIS LURUS
EQUATION OF THE STRAIGHT LINE

1. Nyatakan persamaan bagi garis lurus daripada kecerunan dan pintasan-y yang diberi.
State the equation of the straight line from the given gradient and the y-intercept.
a) kecerunan = 2 dan pintasan-y = 3 b) kecerunan = – 5 dan pintasan-y = 12
gradient = 2 and y-intercept = 3 gradient = – 5 and y-intercept = 12

2
c) kecerunan = dan pintasan-y = 0 d) kecerunan = 1 dan pintasan-y =  3

5 4
2
gradient = and y-intercept = 0 gradient = 1 and y-intercept =  3

5 4

2. Nyatakan persamaan bagi garis lurus AB di bawah.
State the equation for the straight line AB below.
a) b)
y y B (6,15)

A (–4,0) x

B (0,–3) A (4,7) x

c) B (5,8) d) y
y B
(7,7) 8
(3,5)

x x
A –4
A
(–1,–1)

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