I have an exercice in statistics, but I absolutely don't know how to answer the question. Could you please guys help?
1 answer:
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Hello!
A cubic function is in the form of .
All cubic functions have a domain of all real numbers, the range also has a range of all real numbers.
Interval notation is used for representing a function/interval as a pair of numbers. Parentheses and brackets are used to show if the endpoints of a given function/interval are included or excluded. Brackets allow the endpoints to be included while parentheses exclude the endpoint.
Our first instinct would be that the domain is written as [-∞, ∞], but that is incorrect. Infinity is not a number, but it is a concept. This means that they are excluded from the domain.
Therefore, the domain of the function f(x) is (-∞, ∞).
Answer:
The domain of the function is all real values of x, except and
Step-by-step explanation:
We are given the following function:
It's a fraction, so the domain is all the real values except those in which the denominator is 0.
Denominator:
Quadratic equation with
Using bhaskara, the denominator is 0 for these following values of x:
The domain of the function is all real values of x, except and
Answer:
Coordinates of the point B will be (14, 3.5).
Step-by-step explanation:
From the graph attached,
Distance between the Quarterback and Receiver = x-coordinate of the point B = 14 yards
Similarly, height of the football from the ground at point B = y-coordinate of the point B = 9 +
= 9 + 1.5
= 10.5 feet
Since, 1 feet = yards
10.5 feet =
= 3.5 yards
Therefore, coordinates of the point B will be (14, 3.5).