Question

evaluate the function when x=-1let f(x) = {x+3, x is less than 2 x², x is greater than or equal to 2

Answer 1

We need to evaluate the function:

`f(x)=\begin{cases}x+3,\text{ x<2} \\ \\ x^2,\text{ x}\ge2\end{cases}`

when x=-1. To do that we need to determine if we need to use the first association rule or the second one. Since -1<2 we have to use the first assocation rule, then:

`f(-1)=-1+3=2`

Therefore, f(-1)=2