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Dennis_Churaev [7]
3 years ago
15

What is the range and domain of the function : y= sqrt(x) -5 ... Can you please explain? Thanks btw the square root is only over

the x
Mathematics
2 answers:
alukav5142 [94]3 years ago
6 0

Answer:

Step-by-step explanation:

The answer is y> =-5

Likurg_2 [28]3 years ago
3 0
Okay so basically domain =input and range =output. you can never have a negative number underneath the square root sign because it will make the answer imaginary (i), unless you are on that concept. Therefore the range is any number greater than 0. -> all real numbers greater than or = 0

for the range if you input 0 as x you will get -5, so any number you input after 0 will be greater than -5. so range is all real numbers greater than or equal to -5. 
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why do whole numbers raised to an exponent get greater while fractions raised to an exponent get smaller?
Scrat [10]
Because 3^2 = 9
When you do (⅓)^2 what you are really doing is
(1^2)/(3^2) = 1/9


If you have (⅔)^2 you do
(2^2)/(3^2) = 4/9

Fractions get smaller because the denominator is also being squared which makes the denominator get bigger and when the denominator is bigger, you are dividing by a larger number which gives you a smaller answer. Whereas when you raise a whole number to an exponent, only the numerator get bigger because the denominator is 1 and 1 raised to any exponent is still 1

3^2 = (3^2)/(1^2) = 9/1 = 9
6 0
3 years ago
Which two number are 5 unit away from 0 on the number line
geniusboy [140]

Answer:

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Step-by-step explanation:

<h2>Hope this helps!!</h2>
3 0
3 years ago
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ollegr [7]

Answer:

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Step-by-step explanation:

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dybincka [34]

Answer:

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Step-by-step explanation:

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Answer:

that's right

Step-by-step explanation:

4 0
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