Explain in more detail about one to one and onto function?

1 answer:

4 0

For one to one function each element in the domain is mapped on to an one and only one element in the co-domain.

The could be some elements in the co-domain that are not being used.

For a function to be one to one, then for

$f(x) = f(y)$
if and only if

$x = y$

For an onto function all the elements in the co-domain must be used up.

In order words, the $co-domain=Range$

The condition is
$f(x) \rightarrow \: y$
Meaning each $OBJECTshould have an IMAGE$

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Mr. saslow has $32 for the class party. he spends $17 on the drinks and the cake. which of the inequalities represents the money

harkovskaia [24]

Answer:

I don't see any options for inequalities, so I wrote one based on the information.

Step-by-step explanation:

We'll assume that the drinks and cake ($17) are the only items Mr. Saslow needs to purchase and that the remainder may be used on whatever extras he wants. In this case, candy.

He starts with $32 and spends $17. The remainder may be spent on candy (all or none). This can be expressed as an inequality. Let C be the cost of the candy.

C $\leq$ ($32 - $17)