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Match each value of the discriminant with the correct description of the number and type of solutions. Prompts Answers (1) Discriminant \( =25 \) (2) Discriminant \( =30 \) (3) Discriminant \( =0 \) two non-real (imaginary) solutions match (4) Discriminant \( =-9 \) \( \begin{array}{l}\text { one rational solution } \\ \text { two ratrational solutions solutions }\end{array} \)

Ask by Salazar Ray. in the United States
Jan 24,2025

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Answer

- (1) Discriminant \( = 25 \) → two distinct real solutions - (2) Discriminant \( = 30 \) → two distinct real solutions - (3) Discriminant \( = 0 \) → one rational solution - (4) Discriminant \( = -9 \) → two non-real (imaginary) solutions

Solution

To match each value of the discriminant with the correct description of the number and type of solutions, we need to understand how the discriminant (\(D\)) of a quadratic equation \(ax^2 + bx + c = 0\) determines the nature of the roots: 1. **If \(D > 0\)**: There are two distinct real solutions. 2. **If \(D = 0\)**: There is exactly one real solution (a repeated root). 3. **If \(D < 0\)**: There are two non-real (imaginary) solutions. Now, let's analyze each discriminant value provided: 1. **Discriminant \( = 25 \)**: Since \(25 > 0\), this corresponds to **two distinct real solutions**. 2. **Discriminant \( = 30 \)**: Since \(30 > 0\), this also corresponds to **two distinct real solutions**. 3. **Discriminant \( = 0 \)**: This corresponds to **one real solution** (a repeated root). 4. **Discriminant \( = -9 \)**: Since \(-9 < 0\), this corresponds to **two non-real (imaginary) solutions**. Now, let's match the discriminants with the descriptions: - (1) Discriminant \( = 25 \) → **two distinct real solutions** - (2) Discriminant \( = 30 \) → **two distinct real solutions** - (3) Discriminant \( = 0 \) → **one rational solution** - (4) Discriminant \( = -9 \) → **two non-real (imaginary) solutions** Thus, the matches are: - (1) Discriminant \( = 25 \) → two distinct real solutions - (2) Discriminant \( = 30 \) → two distinct real solutions - (3) Discriminant \( = 0 \) → one rational solution - (4) Discriminant \( = -9 \) → two non-real (imaginary) solutions

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Mind Expander

When you encounter a positive discriminant, like \(25\) and \(30\), you're in the realm of real solutions! Specifically, both of these discriminants indicate two distinct real solutions, making your quadratic equation as lively as a dance party! For \(0\), your equation settles down to one real solution—think of it as the quiet moment after the party, where everything converges at one point. Now, if you venture into the world of negative discriminants, like \(-9\), get ready for some imaginary fun! This indicates two non-real (imaginary) solutions, reminiscent of characters in a romantic comedy who never quite meet, yet their story plays on in the imagination. So, basically: \( (1) \) and \( (2) \) get two distinct real solutions, \( (3) \) gets one rational solution, and \( (4) \) gets those delightful two non-real solutions!

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