year 8 maths

7D
Gradient
417
Exercise 7D
EXTENSION
UNDERSTANDING AND FLUENCY
1, 2, 3–4(½), 5–6(½) 3–6(½)
5–6(½)
1 Decide if the gradients of these lines are positive or negative.
a b c d
Example 6
2 Decide if the lines labelled a , b , c and d on this graph have a positive, negative, zero or undefined
gradient.
y
a
O
d
c
x
b
3 Simplify these fractions.
a
4
2
b
12
4
c
6
4
d
14
7
e − 6 3
f − 20 4
g − 16 6
h − 15 9
4 Write down the gradient
rise
for each of these slopes.
run
a
1
2
b
3
2
c
4
d
2
5
1
e
3
f
1
2
g
2
h
4
2
6
2
Cambridge Maths NSW
Stage 4 Year 8 Second edition
ISBN 978-1-108-46627-1 © Palmer et al. 2018
Cambridge University Press
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