MYP Standard Mathematics 5.1 Relations Vs Functions Questionbank

True or False: In a mapping diagram, if there is an element in the input set (Domain) that does not have an arrow originating from it, the relationship is still considered a function as long as no other input has more than one arrow.

True or False: Every one-to-one relation is also a function.

Consider the function $f(x) = 4x - 9$. If the domain is restricted to the set $\{0, 1, 2\}$, what is the resulting range?

Given the function defined by the set of ordered pairs ${f = \{(-2, 4), (0, 0), (2, 4)\}}$, what is the value of ${f(2)}$?

True or False: Every one-to-one relation is a function, but not every many-to-one relation is a function.

True

False

$\{-9, -13, -17\}$

$\{0, 1, 2\}$

$\{-9, -5, -1\}$

$\{9, 5, 1\}$

True

False