Question

The graph below shows three functions:

Answer 1

Which function has all real numbers as its domain?


Only f(x)
Both g(x) and p(x)
Both f(x) and g(x)
Only p(x)

Answer 2

@bibby

Answer 3

fx only

Answer 4

The blue and the red functions have limited intervals, they are line segments

Answer 5

p(x), looks like the function y=e^x, and has a domain of all real numbers, even though it looks like it only goes to around x = 2, if you use HUGE y values, x does have all possible values, all real numbers

Answer 6

For that second one, first let x =0, and a number to the zero power is 1

Answer 7

ok :D

Answer 8

Then use f(1) and see what that point is, or use the fact that it DECAYS over time, so it is the one of the two left that is decreasing

Answer 9

F(x) is not the right answer for the first one, as alex said, dont know if you caught that

Answer 10

oh so 1st is p(x) ?

Answer 11

c?

Answer 12

@DanJS

Answer 13

@AlexandervonHumboldt2 is it line D for the second and p(x) for the first?

Answer 14

for secnod D

Answer 15

first px

Answer 16

the second is not D, wrong again mr alex

Answer 17

f(0) = 4*3^0 = 4*1 = 4

Answer 18

and it is decreasing

Answer 19

B then?