How do you write an equation using function notation?
let's take an arbitrary equation, or maybe two or three so you
can see how to do it. y=2x+6 t=z^2+3z w=r^4+pi Ok, the first
equation, you pick the x and put it in the equation and multiply it
by 2 then add 6. If you do all this you get y. So y is really a
function of x or function of x is written f(x) is the way we say
this So to write the equation in function notation we write
f(x)=2x+6 Same thing for the second equation z is what we put in.
It is the independent variable. So t is just a function of z we
write f(z)=z^2+3z Last equation is the same f(r)=r^4+pi