1. Re-arranging formulae
Literacy
Can you define these keywords?
Expression Variable
Equation Subject
Formula Coefficient
Function Re-arrange
Identity Factorise
Inequality Expand
Inverse Simplify
Skills Practice
Get “a” on own.
7p + 3a = 8
1 - 8a = 4t
t = a + 11 5
3a2 = pt
x(a + 2) = 7
a(p – 3q) = pq
Make a the subject
y + 5 = py a
3a + ap = 4p
aq – ay = 3pt
at + pq = 3(a +y)
5a – qt = p(a +3)
Make x the subject
y =
Make a the subject
Research
Can you create your own examples for each keyword above.
Make x the subject
Memory
Remember that re-arranging formulae helps save us time; rather than remember multiple versions of the same formula, we need to know only 1 version and through understanding we can deduce the other versions.
Stretch
Make c the subject for both answers
Make Cos A the subject
a² = b² + c² - 2bc CosA