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Mathematics 8 Online
OpenStudy (mathhelper9124):

Algebra help

OpenStudy (mathhelper9124):

Which of the following expressions is the inverse of the function y equals quantity x minus 2 divided by 3?

OpenStudy (mathhelper9124):

Consider the function f(x) = 4x2 + 5. Find the value of f(x) when x = 2 and select the correct answer below.

Nnesha (nnesha):

\[find ~~~f^{-1}(x) ~~~~ y=\frac{x-2}{3}\] is this ur first question ?

OpenStudy (mathhelper9124):

I already found my first question

OpenStudy (mathhelper9124):

y=3x+2?

Nnesha (nnesha):

alright good for second one just plugin x=2

Nnesha (nnesha):

\[f(x)=4\color{Red}{x}^2+5 ~~~\color{red}{x}=2\] replace x with 2 and then simplify

Nnesha (nnesha):

how did you get 11 show me the work :=))

OpenStudy (mathhelper9124):

sorry I keep crushing rip It's 21

OpenStudy (mathhelper9124):

*rushing

Nnesha (nnesha):

looks good!

OpenStudy (mathhelper9124):

is that all I needed to do?

Nnesha (nnesha):

yes sir

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