Question

Can someone tell me if im right?

Answer 1

not quite

Answer 2

for 3^x we can plug in anything for x and still get an answer

Answer 3

so what's the domain?

Answer 4

isnt it infinity?

Answer 5

Can you plug a negative number into the exponent?

Answer 6

good, (-infinity,infinity)

Answer 7

so im not right?

Answer 8

now, what do you think the minimum value of 3^x is?

Answer 9

no your original answer was not correct

Answer 10

wait so the domain was infinity?

Answer 11

the domain was

(-infinity,infinity)

Answer 12

so its either the first or the second answer

Answer 13

good, let's get to that

Answer 14

what do you think the minimum value of 3^x is?

Answer 15

okay

Answer 16

domain should be all real #'s

Answer 17

i honestly dont know

Answer 18

Im not sure

Answer 19

hint: the lowest value of 3^x occurs when x = 0

Answer 20

so the range is 0,infinity

Answer 21

actually scratch that

Answer 22

okay

Answer 23

hint: what happens when we plug in a very negative number for 3^x?

Answer 24

like, x = -9999?

Answer 25

its infinity ?

Answer 26

try it

Answer 27

what is 3^(-9999)?

Answer 28

can i put that in a calc?

Answer 29

sure

Answer 30

if -9999 gives you an error try something like -100

Answer 31

okay

Answer 32

@Vocaloid

Answer 33

lol

Answer 34

don't include x

Answer 35

3^-999 is about 0

Answer 36

now, our function is

3^x + 5

Answer 37

the minimum value of 3^x is approximately 0

Answer 38

so the minimum of the entire function is 0 + 5 = 5

Answer 39

oh okay

Answer 40

our range, therefore, is (5, infinity)