3. The function f(x) = ax³ + bx² + cx - 8 has zeroes at x = -1 and x = 2, and passes through the point (1, -2). a) Find the remaining zero. b) Sketch the graph of the function. y X

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 48E
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3. The function f(x) = ax³ + bx² + cx - 8 has zeroes at
x = -1 and x = 2, and passes through the point (1, -2).
a) Find the remaining zero.
b) Sketch the graph of the function.
y
X
Transcribed Image Text:3. The function f(x) = ax³ + bx² + cx - 8 has zeroes at x = -1 and x = 2, and passes through the point (1, -2). a) Find the remaining zero. b) Sketch the graph of the function. y X
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