1 You are given the function f(x) = x2+7 f(x) is concave up whenever:

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter8: Polynomials
Section8.4: Zeros Of A Polynomial
Problem 31E
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1
You are given the function f(x) =
x2+7
f(x) is concave up whenever:
OA. x² + 7 is negative.
B. 3x2 + 7 is positive.
)C. x² – 7 is negative.
D. 3x2 – 7 is negative.
E. 3x2 + 7 is negative.
OF. 3x? – 7 is positive.
-
f(x) is concave down whenever:
A. 3x2 + 7 is positive.
B. 3x2 + 7 is negative.
C. x² – 7 is negative.
)D. x² +7 is negative.
E. 3x? – 7 is negative.
F. 3x² – 7 is positive.
-
-
The points of inflection of f(x) are the same as:
A. the zeros x² + 7.
B. the zeros of 3x2 + 7.
C. the zeros of 3x² – 7.
D. the zeros of x2 – 7.
Transcribed Image Text:1 You are given the function f(x) = x2+7 f(x) is concave up whenever: OA. x² + 7 is negative. B. 3x2 + 7 is positive. )C. x² – 7 is negative. D. 3x2 – 7 is negative. E. 3x2 + 7 is negative. OF. 3x? – 7 is positive. - f(x) is concave down whenever: A. 3x2 + 7 is positive. B. 3x2 + 7 is negative. C. x² – 7 is negative. )D. x² +7 is negative. E. 3x? – 7 is negative. F. 3x² – 7 is positive. - - The points of inflection of f(x) are the same as: A. the zeros x² + 7. B. the zeros of 3x2 + 7. C. the zeros of 3x² – 7. D. the zeros of x2 – 7.
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