What function should be graphed in order to solve the equation 9x−6=−8

?(1 point)
Responses

f(x)=9x−14
f left parenthesis x right parenthesis equals 9x minus 14

f(x)=9x+2
f left parenthesis x right parenthesis equals 9 x plus 2

f(x)=17x−6
f left parenthesis x right parenthesis equals 17 x minus 6

f(x)=x−6

1 answer

To solve the equation \( 9x - 6 = -8 \), we can rearrange it into the form of a function.

First, add 6 to both sides of the equation:

\[ 9x = -8 + 6 \] \[ 9x = -2 \]

Next, divide both sides by 9:

\[ x = -\frac{2}{9} \]

To express the original equation as a function, we can set \( f(x) = 9x - 6 \) and find where this equals -8:

\[ f(x) = 9x - 6 \]

This tells us that to solve the equation \( 9x - 6 = -8 \), we need to graph \( f(x) = 9x - 14 \) (since \( 9x - 6 + 8 = 0 \) leads to \( 9x - 14 = 0 \)).

Based on the options given, the correct function to graph is:

f(x) = 9x - 14.