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1 answer:
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Answer:
square root:
decimal: 7.81
Step-by-step explanation:
We have a number line as indicated in the figure above. From this figure we know that the <em>x-values</em> <em>increase f</em><em>rom left to right</em>. So we need to write the solution<span> that matches the previous graph. Taking a look on the graph we see that 
begins in -3 and closes in 8, that is, <em>takes values from -3 to 8</em>. In a mathematical language this is given by the following statement:
</span>![x \in [-3,8]](https://tex.z-dn.net/?f=x%20%5Cin%20%5B-3%2C8%5D)
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</span>
</span>
</span>
<h3>Answer: 1.3</h3>
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Work Shown:
The two points we have are and
Apply the distance formula
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A shortcut is possible by subtracting the y coordinates of the two points, and making the result positive through the use of absolute value.
So we either say
|y1-y2| = |1.2-2.5| = |-1.3| = 1.3
or,
|y2 - y1| = |2.5 - 1.2| = |1.3| = 1.3
We get the same result. This shortcut is valid because the x coordinates of both points are the same.