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What is the highest power of x in a polynomial called?
Degree
What do you call the values of x that make the polynomial zero?
Roots
What is breaking a polynomial into simpler parts called?
Factorisation
𝑥 ^2 − 7 𝑥 + 12 = 0
(x−3)(x−4)=0
𝑥 ^2 + 3 𝑥 − 10 = 0
(x+5)(x−2)=0
𝑥^2 − 4 𝑥 − 21 = 0
(x−7)(x+3)=0
2x−6=16
x=11
x ^2 −4x+4=0
(x−2)(x−2)=0
Find the mean of: 2 , 4 , 6 , 8 , 10
6
Find the median of: 1 , 3 , 6 , 3 , 7
3
Find the mode of: 4 , 4 , 5 , 6 , 6 , 6 , 7
6
Find the mode of: 1 , 2 , 2 , 3 , 4 , 4 , 4 , 5
4
Find the median of: 12 , 8 , 25 , 20 , 15
15
Find the mean of: 5 , 5 , 10 , 15 , 20
11
How do you calculate the standard deviation from the variance?
By taking the square root of the variance
What does the second quartile (Q2) represent?
Median
