raffle tickets are being sold for a fundraiser the relationship between n number of raffle tickets sold and a amount of money raised is given by the function below A(n)=3n-20 what is the equation of the inverse function N(a)

Question

anonymous · Answer

@Directrix  can you help me please?

directrix · Answer

I use x and y.

Start with: y = 3x - 20

For the inverse, interchange the x and y and then solve for the new y.

directrix · Answer

x = 3y - 20

3y = x + 20

y = (1/3)x + (20/3)

Is that N(a) = ?

directrix · Answer

What are the options? I don't know what to code the variable x unless it is a.

N(a) = (1/3)a + (20/3) --> Maybe this is it.  @kimmykahtt