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laqu33n021
09.12.2019 •
Mathematics
Consider the table representing a rational function.
which statement describes the graph of the function?
the function has holes when x = 0 and x = 4.
the function has vertical asymptotes when x = 0 and x = 4.
the function has a vertical asymptote when x = 0 and a hole when x = 4.
the function has a hole when x = 0 and a vertical asymptote when x = 4.
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Ответ:
Using the asymptote concept, the correct option is:
The function has vertical asymptotes when x = 0 and x = 4. A vertical asymptote is a point outside the function's domain, that is, a value of x for which the function is undefined.In this problem:
According to the table, the function is undefined for x = 0 and x = 4.Thus, these values are vertical asymptotes, and the correct option is:The function has vertical asymptotes when x = 0 and x = 4.
A similar problem is given at link
Ответ:
The function has a hole when
and a vertical asymptote when
.
Step-by-step explanation:
We have been given a table that represents values of a rational function. We are asked to choose the statement that describes the graph of the function.
We can see from our given table that at
and
function is undefined.
We can also see that that the value of function to the left of 0 is
and the value of function to the right of 0 is
. This means that function has a point discontinuity that is at
is zero for both numerator and denominator. Therefore, the function has hole at
.
Upon looking at table we can see the value of function to the left of 4 is
and the value of function to the right of 4 is
. This means that function is approaching to different directions around
. Therefore, the function has a vertical asymptote at
.
Therefore, option D is the correct choice.
Ответ:
72 cm²
Step-by-step explanation:
Given the ratio of diameters = a : b , then
ratio of areas = a² : b²
Here the ratio of diameters = 2 : 5 , then
ratio of areas = 2² : 5² = 4 : 25
let x be the area of smaller circle then using proportion
25x = 1800 ( divide by 25 )
x = 72
That is the area of the smaller circle is 72 cm²