Relations, mappings and functions

Question 1 of 10

Given f(x) = 6x + 5, find f(5).

Question 2 of 10

A mapping sends 3 → 18, 4 → 23, 5 → 28. Find the rule.

Question 3 of 10

A mapping sends 2 → 8, 3 → 11, 4 → 14. Find the rule.

Question 4 of 10

The function f is defined by f(x) = 2x − 1 on the domain {−2, −1, 0, 1, 2, 3}. (a) Find the range. (b) Draw an arrow diagram for the mapping. (c) Find x when f(x) = 5.

Question 5 of 10

A relation in which each input has exactly one output is a

Question 6 of 10

Given f(x) = 2x + 1, find f(8).

Question 7 of 10

The function f is defined by f(x) = 2x − 1 on the domain {−2, −1, 0, 1, 2, 3}. (a) Find the range. (b) Draw an arrow diagram for the mapping. (c) Find x when f(x) = 9.

Question 8 of 10

A mapping sends 2 → 2, 3 → 6, 4 → 10. Find the rule.

Question 9 of 10

Given f(x) = 6x + 0 and f(k) = −30, find k.

Question 10 of 10

The domain is the set of outputs.