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In $9-14$ : a. For each given value of the discriminant of a quadratic equation with rational coefficients, determine if the roots of the quadratic equation are $(1)$ rational and unequal, $(2)$ rational and equal, $(3)$ irrational and unequal, or $(4)$ not real numbers. b. Use your answer to part a to determine the number of $x$ -intercepts of the graph of the corresponding quadratic function. 9

(a) rational number, unequal(b) 2 x-intercepts

Algebra

Chapter 5

QUADRATIC FUNCTIONS AND COMPLEX NUMBERS

Section 3

The Discriminant

Equations and Inequalities

Quadratic Functions

Complex Numbers

Polynomials

Campbell University

Oregon State University

Harvey Mudd College

Lectures

01:32

In mathematics, the absolu…

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In $9-14$ : a. For each gi…

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Use the discriminant to de…

01:52

In $15-23 :$ a. Find the v…

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Kim Indiscriminate D is equal to nine. That means that is squid 10 and it's a perfect square. So but that we can tell that the boots are rational and send That's not zero. They are on e clothes, no into Part B. Since he's not zero X touches the cortege exacts of the two different points. So there two X and ourselves. Uh huh.

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