Given the function f(x) = log3(x + 4), find the value of f-1(3). (1 point)
Question 46 options:

1) f-1(3) = 7

2) f-1(3) = 12

3) f-1(3) = 23

4) f-1(3) = 31

Question

Given the function f(x) = log3(x + 4), find the value of f-1(3). (1 point)
Question 46 options:
	
1) 	f-1(3) = 7
	
2) 	f-1(3) = 12
	
3) 	f-1(3) = 23
	
4) 	f-1(3) = 31

campbell_st · Answer

you need to find the inverse function as the 1st step... so 

the function can be re-written as

$$y = \log_{3}(x + 4)$$

to find the inverse swap x and y 

$$x = \log_{3}(y + 4)$$

now solve for y, 

this will give the inverse.