8.9k views
4 votes
The graph shows the function f(x) = 2*
What is the value of xwhen f(x) = 8?

The graph shows the function f(x) = 2* What is the value of xwhen f(x) = 8?-example-1
User Vavasthi
by
8.7k points

2 Answers

2 votes

Answer:

A. 3

Explanation:

y = 2^x

y = 8

Plug y as 8 in the first equation.

8 = 2^x

Make the left side of the equation with a base of 2.

2^3 = 2^x

Cancel bases.

3 = x

User Pvans
by
8.5k points
0 votes

Answer:

x=3

Explanation:

f(x) = 2^x

Let f(x) =8

8 = 2^x

Rewriting 8 as 2^3

2^3 = 2^x

The bases are the same so the exponents are the same

3=x

User Cyrlop
by
8.0k points

Related questions

asked Jul 10, 2021 145k views
Pax Vobiscum asked Jul 10, 2021
by Pax Vobiscum
8.3k points
2 answers
4 votes
145k views
1 answer
5 votes
209k views
asked Sep 11, 2021 43.2k views
Niina asked Sep 11, 2021
by Niina
7.5k points
2 answers
3 votes
43.2k views