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What is the exluded values of the following functions?
1. y = 4/(9x  45)
2. y = 7/(2x + 48)
 one year ago
 one year ago
What is the exluded values of the following functions? 1. y = 4/(9x  45) 2. y = 7/(2x + 48)
 one year ago
 one year ago

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juan_9292Best ResponseYou've already chosen the best response.1
excluded values are like holes on a function or graph. which tend to happen when the denominator equals to 0
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
You get the excluded value when you get 0 as the denominator. First one \(\Large \color{MidnightBlue}{\Rightarrow 9x  45 = 0 }\) Solve for x to get the excluded value. Same for second.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
\(\Large \color{MidnightBlue}{\Rightarrow 2x + 48 = 0 }\) Here's for the second
 one year ago

shivam_bhallaBest ResponseYou've already chosen the best response.0
The value of denominator should not be equal to zero as the value of function would become infinity. Therefore 9x−45=0 >The value that x should not be equal to
 one year ago

Connie1Best ResponseYou've already chosen the best response.0
0 is not an answer choice.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
Solve for x in the equations I have given.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
\(\Large \color{MidnightBlue}{\Rightarrow 9x = 45 }\) \(\Large \color{MidnightBlue}{\Rightarrow x = 5 }\) Therefor, excluded value in the first one is 5.
 one year ago

juan_9292Best ResponseYou've already chosen the best response.1
right, but what we mean is that to find the excluded values you need to set the denominator to 0. for example the first problem just taking the denominator into consideration since its what we are looking at 9x+45=0 9x=45 x=45/9
 one year ago

juan_9292Best ResponseYou've already chosen the best response.1
*** sorry, @ParthKohli is right, I had my number wrong should be 9x45 which will change the sign to positive. sorry about that
 one year ago
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