Question

evaluate following piecewise defined function @ x=-3,x=1/4, and x=3
f(x)3^rt9x for x<0
8x for 01/2

Answer 1

wow am I lost...

Answer 2

ok... so you have 3 functions with differing domains.

I am unsure of the 1st function but you need to substitute x = -3 as x<0

next you need to find

f(1/4) so you use f(x) = 8x since 0<= x <= 1/2

and lastly

f(3) so you use 2/3 x since x>1/2

Answer 3

???

Answer 4

so you can't find

f(1/4) when f(x) = 8x?

Answer 5

2

Answer 6

thats good

now f(3) uses the last function f(x) = 2/3 x becuase x > 1/2

can you now find f(3)

Answer 7

2

Answer 8

ok... so the conditions to the right of each function, determine which to use...

now for x = -3

you need to find f(-3) which uses the 1st function, that I can't understand, because x < 0

Answer 9

=-3

Answer 10

well looks like you have a solution. hope it helps

Answer 11

f(x)=\[\sqrt[3]{9x}\]

Answer 12

that is the 1st one. But what do I do with these numbers