What is the domain and range? is the relation a function? explain why or why not.
{(8.4, 3.8), (6.5, -2.6), (-3, 6)}

Domain and Range

Step-by-step explanation:

Let be the given function

Function:

Function can be defined as "A special relationship where each input has a single output".

It is often written as "" where x is the input value.

Domain:

The domain of a function is the complete set of possible values of the independent variable.

Range:

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.

Function is the set of all ordered pairs of   domain and range. It can be written as

where are domain and are range

Given the ordered pairs of domain and range where are domain and are range.

ie, Domain and Range

d

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950