How many zeros can a quartic function have?

a) zero, two or four

b) only four

c) only one

d) zero, one, two, three or four

Which of the following indicates that a data set can be modelled using a cubic function?

a) fourth differences are constant

b) third differences are constant

c) first differences are constant

d) second differences are constant

What would be the effect of a reflection in the y-axis for the function f (x) = x2?

a) the function moves to the right

b) the function moves to the left

c) the function will look upside down

d) there is no change

Which of the following indicates that data set can be modelled using a linear function?

a) first differences are constant

b) fourth differences are constant

c) third differences are constant

d) second differences are constant

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