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 & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 28E
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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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