Question

Cant figure this out,not even for the life of me.

Find f(1) for the
piece-wise function.
f(x) =
2x
NIT
if x < 1
+/ ifx>1
x+
f(1) = [?]

Answer 1

well, f(1) is indicating that x = 1, hmmm for the piecewise, on what section is that?

well, x < 1 is just whenever "x" is less than 1, but not 1.

x ⩾ 1 is whenever "x" is either 1 or greater than 1, so that's our guy, so we use that subfunction to get it.

`f(x)= \begin{cases} 2x&x < 1\\\\ \cfrac{1}{2}x+\cfrac{5}{2}&x\geqslant 1\hspace{3em}\textit{f(1) is in this section} \end{cases} \\\\[-0.35em] ~\dotfill\\\\ f(1)=\cfrac{1}{2}(1)+\cfrac{5}{2}\implies f(1)=3`