The parabola shown is the graph of  y = f(x) = ax2 + bx + c.   Find the sign of a, b, f(-b/2a), and b^2 - 4ac.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.6: Rules For Multiplication
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The parabola shown is the graph of 

y = f(x) = ax2 + bx + c.
 
Find the sign of ab, f(-b/2a), and b^2 - 4ac.
y
5-
4
1
-5 -4 -3
2
-1
1
4
-1
-2
-3
-4
-5F
3.
2.
3.
2.
Transcribed Image Text:y 5- 4 1 -5 -4 -3 2 -1 1 4 -1 -2 -3 -4 -5F 3. 2. 3. 2.
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