Question

given the piecewise function f(x)=
{2x,x<1}
{5, x=1}
{x^2,x>1}

A. f(2)=4
B. F(5)=1
C. F(-2)=4
D. F(1)=5

Answer 1

so.. what do you think about the first choice? is that true is f(2) really = 4?
so try it \(\large f(x)=
\begin{cases}
2x&x<1\\
5&x=1\\
x^2& x>1
\end{cases}\)

Answer 2

i got the answer right it was A but than D was also the right answer.

thank you :)