81.2k views
2 votes
Which of these is an exponential parent function?

A. f(x) = x

B. f(x) = 2x

C. f(x) = x2

D. f(x) = |x|

User Marker
by
8.7k points

2 Answers

3 votes
F(x) = 2^x

Option B

........................
User Piranha
by
8.5k points
6 votes

Answer:

Option B

Explanation:

A) f(x) =x This is a straight line passing through the origin with slope = 1.

C) This is f(x) = x^2 a parabola open up

D) f(x) = |X| is a straight line y=x for x>0 and y =-x for x<0

Hence the above 3 cannot be an exponential parent functions.

Consider option B

f(x) =
2^X

This is obviously an exponential function since the variable x appears in exponent.

Base is 2.

Thus we have option B is the right answer

User Dan Tello
by
8.5k 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