Hello. I was wondering how I would set this problem up. it reads " Suppose f(x)= (x+6)/(x-4). Find all values of "a" for which f(a)=2. Thanks for any help!!! JAson
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Originally Posted by Mathfailure Hello. I was wondering how I would set this problem up. it reads " Suppose f(x)= (x+6)/(x-4). Find all values of "a" for which f(a)=2. Thanks for any help!!! JAson okay, so f(a) just means we plug a into the function, they want the value of the function when a is plugged in to be 2, so f(a) = (a + 6)/(a - 4) = 2 => a + 6 = 2(a - 4) => a + 6 = 2a - 8 => a = 14
Originally Posted by Jhevon okay, so f(a) just means we plug a into the function, they want the value of the function when a is plugged in to be 2, so f(a) = (a + 6)/(a - 4) = 2 => a + 6 = 2(a - 4) => a + 6 = 2a - 8 => a = 14 Hello. Sorry bout the confusion, but how does a+6=2a-8 make a equal to 14? thanks
Originally Posted by Mathfailure Hello. Sorry bout the confusion, but how does a+6=2a-8 make a equal to 14? thanks Step by step: a + 6 = 2a - 8 -a + a + 6 = -a + 2a - 8 6 = a - 8 6 + 8 = a - 8 + 8 14 = a -Dan
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