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anonymous
 one year ago
Which of the following expressions is the inverse of the function y = x  2 / 3?
y = 3x + 2
y = 2x + 3
y = x  3 / by 2
y = x + 2 / by 3
anonymous
 one year ago
Which of the following expressions is the inverse of the function y = x  2 / 3? y = 3x + 2 y = 2x + 3 y = x  3 / by 2 y = x + 2 / by 3

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Is the original \[\Large y = x  \frac{2}{3}\] or is the original \[\Large y = \frac{x2}{3}\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1lack of sleep .. T_T

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1\[\Large y = \frac{x2}{3}\] swap x and y \[\Large x = \frac{y2}{3}\] now solve for y

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1hmmm I would get rid of the denominator by multiplying 3 all the way first and then swap x and y.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1either way works

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not sure what to start with when solving for y.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\Large 3y = (3)\frac{x2}{3} \rightarrow 3y=x2\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1then swap x and y . In other words switch places ...

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1and then solve for y...this would be much easier because I got rid of the fraction first by multiplying the entire equation by 3

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so what do we need to do to have y by itself

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.13x and 2 are NOT like terms

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1ummmm 3x+2 is not combinable

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you cannot say 3x+2 turns into 5x or 5

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1because 3x has a number and variable 2 is just a number... it can't be combined

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok... how do I isolate y.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1y has to be by itself... \[\large 3x=y2 \] so what do we need to do to have y by itself... y is destined to be alone xD

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1unheard, when you added 2 to both sides, you were on the right path

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.13x = y  2 +2 +2 3x + 2 = y y = 3x + 2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you just leave 3x+2 as it is since you cannot combine those terms

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1she already had it usukidoll

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1jim's version would have required fractions to be split up \[\Large x = \frac{y2}{3} \rightarrow x = \frac{y}{3}\frac{2}{3}\] \[\Large x + \frac{2}{3} = \frac{y}{3}\] and then multiply 3 throughout the equation... too long...but another way to check \[ \Large 3x+2=y\]
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