Expert answer:Math quiz

Expert answer:The problems are attached Pre-calculus quiz can you send answers with the proper and detailed solving
math_160_2017f_jones.yy1499a.quiz3_v1.pdf

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Yernur Yermek
Assignment Quiz3 due 12/05/2017 at 12:55pm EST
MATH-160-2017F-Jones
Problem 1. 1. (1 point) Suppose A is directly proportional
to the square of B, and A = 75 when B = 5.
(1) Find the constant of proportionality.
help (numbers)
(2) Write the formula for A in terms of B.
help (equations)
(3) Use your formula to find A when B = 6.
A=
help (numbers)
Problem 2. 2. (1 point) Suppose A is inversely proportional
to the square of B, and A = 4 when B = 3.
(1) Find the constant of proportionality.
help (numbers)
(2) Write the formula for A in terms of B.
help (equations)
(3) Use your formula to find A when B = 6.
A=
help (numbers)
Problem 3. 3. (1 point) Find a possible formula for f (x) if
f (1) = 8 and f (3) = 56 and:
(a) f (x) is a linear function. f (x) =
(b) f (x) is a power function. f (x) =
c) f (x) is an exponential function. f (x) =
Problem 4. 4. (1 point) Determine the end behavior of the
following polynomial function:
f (x) = −8×9 − 20×5 − 16×16 − 60×13 + 13
The leading term of the polynomial is
The degree of f (x) is
The leading coefficient is
The end behavior of the polynomial f (x) is of the form:
• A
• B
• C
• D
where:
1
at x = −4. The y-intercept is y = −2;
Find a formula for P(x).
P(x) =
,
Problem 6. 6. (1 point) Find a degree 3 polynomial that has
zeros −2, 3 and 7 and in which the coefficient of x2 is −16.
The polynomial is
Problem 7. 7. (1 point) List all real values of x such that
f (x) = 0. If there are no such real x, type DNE in the answer
blank. If there is more that one real x, give a comma separated
list (e.g. 1,2).
−13
20
f (x) =
+
x + 18 x + 16
x=
Problem 8. 8. (1 point) Consider the function
−7x + 6
f (x) =
(7x + 5)(9x + 5)
Find the vertical asymptote(s). If there is more than one vertical asymptote give a list of the x-values separated by commas.
If there are no vertical asymptotes, type in none .
x=
If this function has a horizontal asymptote, give its y-value.
If there is no horizontal asymptote, type in none .
y=
Find the x-intercept(s). If there is more than one x-intercept
give a list of the x-values separated by commas. If there is no
x-intercept type in none .
x=
Find the y-intercept
y=
Find the domain. Write a comma separated list of all the x
values that are not in the domain. If there are no such x, type
none in the answer blank.
x 6=
Problem 5. 5. (1 point) The polynomial of degree 3, P(x),
has a root of multiplicity 2 at x = 1 and a root of multiplicity 1
Generated by c WeBWorK, http://webwork.maa.org, Mathematical Association of America
2
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