Evaluate:
4y – 7
when y = -4
4 * -4 – 7
= -23
7 – p
when p = -8
7 – -8
= 15
Example 3
If a=2, b=-5, c=1/2 what is: I) ab II) b/a III) 3c² IV) (3c)²
I) -10
II) -2.5
III) 3 x (0.5 x 0.5) = 0.75
IV) (3 x 0.5) x (3 x 0.5) = 2.25
Revision Lesson (MyiMaths)
Online Practice Test
Practice Questions Paper ( Only Questions 1 to 7 – the rest are GCSE Level)
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