Considering the vertex of the parabola, the correct statement is given by:
The range of the function is all real numbers less than or equal to 9.
<h3>What is the vertex of a quadratic equation?</h3>
A quadratic equation is modeled by:

The vertex is given by:

In which:
Considering the coefficient a, we have that:
- If a < 0, the vertex is a maximum point, which means that the range is all real numbers less than or equal to
.
- If a > 0, the vertex is a minimum point, which means that the range is all real numbers greater than or equal to
.
In this problem, we have that:
- a = -1 < 0, hence the vertex is a maximum point.
Hence the range is described by:
The range of the function is all real numbers less than or equal to 9.
More can be learned about the vertex of a parabola at brainly.com/question/24737967
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The common ratio between terms is 3, so the sequence has general
-th term

for
. The term exceeds 7000 when

which means the first time
exceeds 7000 occurs when
. Indeed,

while the previous term would have been

The definition of monomial is an algebraic expression consisting of one term.
a. 2xyz² is monomial.
b. 2x - yz is considered a binomial. (2 terms)
c. 2x + yz is considered a binomial. (2 terms)
d. 2 + xyz is also considered a binomial. (2 terms)
so the right answer is A.
hope this helped, God bless!
Factored form: (x-5)(7x+5) ☺