Paper 1

Question 1

For factor therom questions what should you state?

Answer 1

Factor therorem: if x+3 is a factor p(-3) = 0

At end ⇒ a factor

Question 2

When simplifying polynomial fractions what must ypu state

Answer 2

Restricted domain for all denominators, even ones cancelled in simplification

Question 3

For proving multiples what is helpful to look out for?

Answer 3

Consecutive numbers being multiples of 2 and 3

Question 4

How is the graph y = |2x-5| transfomed to y= |x|

Answer 4

Translation by vector (-2.5, 0)

Stretch parallel to x axis by sf 2

Question 5

How do you work out the period of a periodic sequence?

Answer 5

2π/b