Question

Please help me Evaluate f(x) when (a) x=0 (b) x=2 and (c) x=4 f(x)={x+2 if x<2 2x+1if X greater than or equal to 2 :)

Answer 1

At first you need to see if x<2 or the opposite.
For the first one it is < 2 so you use the first equation putting 0 on the place of x, getting 0+2=2
For the other two, x>=2 so you use the second equation.