### Instruction: Consider the function $g(x)=3x-4$.  For what value of $a$ is $g(a)=0$?### Response: I need to find the value of $a$ that makes $g(a)$ equal to zero.
That means I need to solve the equation $3a-4=0$.
To isolate $a$, I can add $4$ to both sides of the equation, getting $3a=4$.
Then I can divide both sides by $3$, getting $a=\frac{4}{3}$.
This is the value of $a$ that makes $g(a)$ zero.