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melisa1 [442]
2 years ago
6

The discriminant if a quadratic equation is negative. One solution is 4 + 7i. What is the other solution? *

Mathematics
1 answer:
Llana [10]2 years ago
8 0
<h3>Answer:  B) 4 - 7i</h3>

==========================================================

Explanation:

When you have a quadratic in the form ax^2 + bx + c = 0, where a,b,c are real numbers, then a negative discriminant leads to having a pair of complex roots. The roots come in conjugate pairs meaning that p+qi is one root while p-qi is the other root. The p,q are real numbers.

In the case of 4+7i being one root, we have p = 4 and q = 7, since it matches with p+qi. The other root must be 4-7i since it matches with p-qi.

In short, we flip the plus to a minus when going from 4+7i to 4-7i. All of this applies when we have a,b,c as real numbers.

If we allowed a,b,c to be complex numbers, then the roots may not necessarily come in conjugate pairs.

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Which of the following function types exhibit the end behavior (PICTURE INCLUDED)
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Answer:

y=x^n; n is even and greater than zero.

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Step-by-step explanation:

The power function;

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The absolute value function y=|x| also has the same end behavior.

The remaining functions in the options provided do not exhibit this end behavior.

See graph in attachment.

4 0
3 years ago
helppp please ???????? i don’t understand
Vedmedyk [2.9K]

Answer:

should be -8

Step-by-step explanation:

when reflecting over the x-axis, y changes from positive to negative or negative to positive. x stays the same.

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4 0
3 years ago
Read 2 more answers
Om to 4conm.
max2010maxim [7]
The correct answer is water
8 0
3 years ago
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Nesterboy [21]

Answer:

Answers are below

Step-by-step explanation:

x     y

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Answer this question for me pls. :)
Finger [1]
-8, 3 Do you need me to explain
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