6 Answered Questions for the topic Domains

Domains Expressions

01/29/16

can someone tell me if i did i do this correctly
f is a function that takes a real number x and performs the following three steps in the order given: (1) Multiply by 4. (2) Subtract 8. (3) Take the reciprocal. (That is, make the quantity the... more
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Domains

03/16/15

(x+2)/(x^2-4+4x)÷(x^2-4)/(x-2)
identify the domain of the expression  
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10/21/14

Show that the function f: N * N - > N * N, f(x,y) = (x+y, 2x-3y) is one-to-one.
Show that the function f: N x N - > N x N, f(x,y) = (x+y, 2x-3y) is one-to-one.(A function f is said to be one -to -one , or injective , if and only if f ( a) = f ( b ) implies that a = b for... more
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07/09/14

the amount of money collected is represented by the function A(m)=2.50m M is number of minutes after midnight. What would be domain for this function?
Need help, please!!
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Domains Algebra 2

10/21/13

How would you find the domain for f(x) = 2x - 4x^1/2 + 2 ?
How would you find the domain for f(x) = 2x - 4x^1/2 + 2 ? I'm not exactly sure what to do/what steps to take. Do you factor out a 2x1/2 from the whole problem and then get 2x1/2 times x2-3x+2?
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05/26/13

find the domain of the function and express the answer in interval notation
How do you solve this and express the answer in interval notation? Explain. g(x) = 10/(x + 7)
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