itsmichelle29
  • itsmichelle29
Given the parent functions f(x) = 3x + 2 and g(x) = 5x − 10, what is g(x) − f(x)? g(x) − f(x) = 5x − 8 − 3x g(x) − f(x) = 5x − 12 − 3x g(x) − f(x) = 3x − 8 − 5x g(x) − f(x) = 3x + 12 − 5x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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jim_thompson5910
  • jim_thompson5910
\[\Large \color{red}{f(x) = 3x+2}\] \[\Large \color{blue}{g(x) = 5x-10}\] --------------------------------------------- \[\Large \color{blue}{g(x)}-\color{red}{f(x)}=\color{blue}{(5x-10)}-\color{red}{(3x+2)}\] I'll let you finish
itsmichelle29
  • itsmichelle29
What next
itsmichelle29
  • itsmichelle29
@jim_thompson5910

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More answers

itsmichelle29
  • itsmichelle29
i get =2x−12
itsmichelle29
  • itsmichelle29
and that not the answer
jim_thompson5910
  • jim_thompson5910
look through the choices and see which ones have a "-12" in it for some reason, they didn't combine the x terms, idk why
itsmichelle29
  • itsmichelle29
g(x) = 5^x − 10,
jim_thompson5910
  • jim_thompson5910
oh these are exponentials?
itsmichelle29
  • itsmichelle29
5 is to the power of x sorry
jim_thompson5910
  • jim_thompson5910
I see now
itsmichelle29
  • itsmichelle29
3 is not only 5
jim_thompson5910
  • jim_thompson5910
you cannot do \[\Large 5^x - 3^x = 2^x\]
jim_thompson5910
  • jim_thompson5910
\[\Large a^x - b^x \ne (a-b)^x\]
itsmichelle29
  • itsmichelle29
so whats the answer
jim_thompson5910
  • jim_thompson5910
you tell me
itsmichelle29
  • itsmichelle29
B i think or A
jim_thompson5910
  • jim_thompson5910
what's your reasoning on each?
itsmichelle29
  • itsmichelle29
B for -12 or A for -10+2
jim_thompson5910
  • jim_thompson5910
but you have to distribute the negative through
jim_thompson5910
  • jim_thompson5910
\[\Large \color{red}{f(x) = 3^x+2}\] \[\Large \color{blue}{g(x) = 5^x-10}\] --------------------------------------------- \[\Large \color{blue}{g(x)}-\color{red}{f(x)}=\color{blue}{(5^x-10)}-\color{red}{(3^x+2)}\] \[\Large g(x) - f(x) = 5^x - 10 - 3^x - 2\] \[\Large g(x) - f(x) = 5^x - 12 - 3^x\]
jim_thompson5910
  • jim_thompson5910
notice how \(\Large -( 3^x + 2)\) becomes \(\Large - 3^x - 2\)
itsmichelle29
  • itsmichelle29
Oh okayyyy can u help me with one more
jim_thompson5910
  • jim_thompson5910
ok one more
itsmichelle29
  • itsmichelle29
Given the parent functions f(x) = log10 x and g(x) = 3x − 1, what is f(x) • g(x)? f(x) • g(x) = log10 (3x − 1)x f(x) • g(x) = log10 x3x − 1 f(x) • g(x) = 3x log10 x + log10 x f(x) • g(x) = log10 x − 3x log10 x
itsmichelle29
  • itsmichelle29
i think its A
itsmichelle29
  • itsmichelle29
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
can you post a screenshot of this?
itsmichelle29
  • itsmichelle29
1 Attachment
itsmichelle29
  • itsmichelle29
yeah
itsmichelle29
  • itsmichelle29
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
none of the answer choices are correct. There's one that's close, but it's off by a negative sign
jim_thompson5910
  • jim_thompson5910
there has to be a typo somewhere
jim_thompson5910
  • jim_thompson5910
oh nvm I see the answer
itsmichelle29
  • itsmichelle29
pkay thanks anyways
jim_thompson5910
  • jim_thompson5910
hint: y*log(x) = log(x^y)
itsmichelle29
  • itsmichelle29
if fine i turned the tyest in
itsmichelle29
  • itsmichelle29
thanks

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