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Algebra - Coggle Diagram
Algebra
An equation is an expression with an = sign
A variable or an unknown is represented by a letter in an expression
Factorise means put the expression back into brackets
In proof , if n is an integer:
2n is any even value
2n + 1 is any odd value
A number pattern which
increases (or decreases) by
the same amount each time
is called a linear sequence.
To calculate the next term of a
Fibonacci sequence you add the
previous two terms together
A formula is a rule or fact written with mathematical symbols.
An identity is an equation that is true no matter what values are chosen
𝑥 > 𝑦 x is greater than y
𝑥 < 𝑦 x is less than y
𝑥 ≥ 𝑦 x is greater than or equal to
𝑥 ≤ 𝑦 x is less than or equal to y
𝑥 ≡ 𝑦 x is equal to y for all values
of x and y
𝑥 ≠ 𝑦 x is not equal to y
quadratic formula
-b ± √b squared - 4ac
divide it all by 2a