PRECALCULUS:GRAPHICAL,...-NASTA ED.
PRECALCULUS:GRAPHICAL,...-NASTA ED.
10th Edition
ISBN: 9780134672090
Author: Demana
Publisher: PEARSON
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Chapter P.6, Problem 52E
Solution

The nature of graph of a equation f(x)=ax2+bx+c a, b, and c are real numbers, the equation are ax2+bx+c=0 .

  PRECALCULUS:GRAPHICAL,...-NASTA ED., Chapter P.6, Problem 52E , additional homework tip  1

Given:

The equation, ax2+bx+c=0

Concept Used:

  • Quadratic formula, x=b±b24ac2a

Calculation:

In order to find the nature of the graph , first solving the equation ax2+bx+c=0 as shown below:

  ax2+bx+c=0x1,2=b±b24ac2ax=b+b24ac2a;a0x=bb24ac2a;a0

the solutions for the equation are

  x=b+b24ac2a;a0x=bb24ac2a;a0

Now, plotting the graph of the equation ax2+bx+c=0 assuming a=1,b=2,c=3 as shown below:

  PRECALCULUS:GRAPHICAL,...-NASTA ED., Chapter P.6, Problem 52E , additional homework tip  2PRECALCULUS:GRAPHICAL,...-NASTA ED., Chapter P.6, Problem 52E , additional homework tip  3

Chapter P Solutions

PRECALCULUS:GRAPHICAL,...-NASTA ED.

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