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malfutka [58]
3 years ago
6

How do you solve an absolute value equation?

Mathematics
1 answer:
Mkey [24]3 years ago
6 0

The distance between two real numbers x,y is the absolute value of their difference, |x-y|. So the statement "all x that are 1/4 away from -6" is captured in the equation

|x-(-6)|=\dfrac14

or

|x+6|=\dfrac14

To solve, you can use the definition of absolute value: if x is not negative, then |x|=x; otherwise, |x|=-x.

So there are two cases to consider:

1. Suppose x+6\ge0. Then |x+6|=x+6, and the equation reduces to

x+6=\dfrac14\implies x=-\dfrac{23}4

2. Suppose x+6. Then |x+6|=-(x+6)=-x-6 and

-x-6=\dfrac14\implies x=-\dfrac{25}4

-6=-\dfrac{24}4, so the two solutions we found are correct because both -\dfrac{23}4 and -\dfrac{25}4 are indeed 1/4 away from -6.

- - -

For the question regarding inequality, you know that the absolute value must return a non-negative number. In other words, there is no x such that |x|.

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Water boils at 100C which's 400% more than my room temperature. so what's my room temperature
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Which could be the set of ordered pairs of the function?
ivolga24 [154]

An ordered pair of the function is (x, y).

Function:

In math,  a set of ordered pairs in which each x-element has Only One y-element associated with it is known as function.

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Here we need to define the ordered pair of the function.

In order to find the order pair of the function, first we have to know the definition of ordered pair,

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3 0
1 year ago
Sketch these cartesin products on the x-y plane R^2<br><br> 14. 11,21x1,1.5,2
ale4655 [162]

Answer:

\left\{11, 21\right\} \times \left\{1, 1.5, 2\right\} = \left\{ (11, 1), (11, 1.5), (11, 2), (21, 1), (21, 1.5), (21, 2)\right\}

Step-by-step explanation:

The Cartesian product between two discrete sets, is given by all possible ordered pairs originated with the combinations of the elements of the two sets, thus the requested Cartesian product is:

\left\{11, 21\right\} \times \left\{1, 1.5, 2\right\} = \left\{ (11, 1), (11, 1.5), (11, 2), (21, 1), (21, 1.5), (21, 2)\right\}

A = (11, 1)\\B = (11, 1.5)\\C = (11, 2)\\D = (21, 1)\\E = (21, 1.5)\\F = (21, 2)\\

You can see the attached file

Download pdf
3 0
3 years ago
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