8.7k views
2 votes
Y = f(x) = 4^x

Find f(x) when x = -1.
Express as a decimal, rounding to the nearest
thousandth.

User Kinga
by
8.2k points

2 Answers

5 votes

Answer:

0.250

Explanation:

f(x) = 4^x

x = -1

f(x) = 4^-1

= ¼

= 0.250

User Geeky Singh
by
7.9k points
3 votes

Answer:

.25

Explanation:

f(x) = 4^x

Let x = -1

f(-1) = 4^-1

The negative in the exponent moves the number from the numerator to the denominator

f(-1) = 1/4

We want the number in decimal form

1/4 *25/25 = 25/100 = .25

User JoeLallouz
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories