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Answer:
Not all relationships are functions, but all functions are also relationships
Step-by-step explanation:
A relationship is a correspondence between two sets of values.
A relationship assigns values from an output set called range to a set and input called a domain.
On the other hand, a relation is a function if and only if there is only one value of the output set (Range) assigning to each value of the input set (Domain).
In other words, if an input value is assigned two or more output values
,
,
.. then the relationship is not a function. This means that <em>not all relationships are functions</em>.
is a relation but it is not a function.
because when x = 4 then y = 1 and y = 5.
Not all relationships are functions, but all functions are also relationships
Answer:
Given the two triangles are shown:
First triangle has sides x cm , 6 cm and 12 cm.
and
Second triangle has sides 20 cm , 8 cm and 16 cm.
Since, the given two triangles are Similar.
⇒there corresponding sides are in proportion.
i,e
(a)
Solve for x;
By cross multiply we have;
Divide both sides by 16 we get;
cm
(b)
Find x using the ratio sides:
By cross multiply we have;
Divide both sides by 8 we get;
or
cm
The value of x =15 cm in both a and b is same because the given two triangles are similar,
by definition of similarity, the given triangles have their corresponding sides are in proportion.