Question

Question below.

Just have to match the items together

Answer 1

Usually x is used instead of y, but anyways, you replace every copy of y with the given input value


For instance, with f(-2) we replace every copy of y with -2


\[\Large f(y) = y+y^2 - 3\]
\[\Large f({\color{red}{y}}) = {\color{red}{y}}+{\color{red}{y}}^2 - 3\]
\[\Large f({\color{red}{-2}}) = {\color{red}{-2}}+({\color{red}{-2}})^2 - 3\]
\[\Large f(-2) = -2+4-3\]
\[\Large f(-2) = -1\]


Hopefully this makes sense?

Answer 2

thanks! It did

Answer 3

you're welcome