18. Which of the following functions has a graph that opens upward? A. f (x) = (x – 7)² – 3 B. f (x) = 7 – (x + 2)² C. f(x) = - (x + 2)2 + 1 D. f (x) = – (x – 2)² – 10 tonons dovwnward?

College Algebra
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ISBN:9781938168383
Author:Jay Abramson
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Chapter3: Functions
Section3.4: Composition Of Functions
Problem 97SE: The number of bacteria in a refrigerated food product is given by N(T)=23T256T+1,3T33 ,where T is...
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18. Which of the following functions has a graph that opens upward?
A. f(x) = (x – 7)² – 3
B. f(x) = 7 – (x + 2)²
C. f(x) = - (x + 2)2 + 1
D. f(x) = – (x – 2)² – 10
19. Which of the following functions has a graph that opens downward?
A. f(x) = (x + 8)² – 5
B. f(x) = (x + 2)² + 9
C. f (x) = 8+ 3 (x + 2)²
D. f (x) = 12 – 3 (x + 2)2
%3D
20. What can you say about a parabola that opens downward?
A. It has a minimum value
B. It has a maximum value
C. both and b
21. How would you describe the parabola f (x) = -x?
A. Its vertex is at point (0,0) and it opens upward.
B. Its vertex is at point (0,0) and it opens to the left.
C. Its vertex is at point (0,0) and it opens downward.
D. Its vertex is at point (0,0) and it opens to the right.
22. What do you call the graph of a quadratic function?
B. Parabola
C. Axis of symmetry
A. Vertex
Youth Army of Masigasig National High School build 2 squares. The
Tom more than that of the
Transcribed Image Text:18. Which of the following functions has a graph that opens upward? A. f(x) = (x – 7)² – 3 B. f(x) = 7 – (x + 2)² C. f(x) = - (x + 2)2 + 1 D. f(x) = – (x – 2)² – 10 19. Which of the following functions has a graph that opens downward? A. f(x) = (x + 8)² – 5 B. f(x) = (x + 2)² + 9 C. f (x) = 8+ 3 (x + 2)² D. f (x) = 12 – 3 (x + 2)2 %3D 20. What can you say about a parabola that opens downward? A. It has a minimum value B. It has a maximum value C. both and b 21. How would you describe the parabola f (x) = -x? A. Its vertex is at point (0,0) and it opens upward. B. Its vertex is at point (0,0) and it opens to the left. C. Its vertex is at point (0,0) and it opens downward. D. Its vertex is at point (0,0) and it opens to the right. 22. What do you call the graph of a quadratic function? B. Parabola C. Axis of symmetry A. Vertex Youth Army of Masigasig National High School build 2 squares. The Tom more than that of the
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