73.1k views
3 votes
Which points are on the graph of ƒ(x) = 2(0.5)x?

(0, 2)
(1, 1)
(-2, -8)
(2, 2.25)
(-1, -1)

2 Answers

1 vote
First set of points (0,2) (1,1)
User Enitihas
by
9.0k points
5 votes
Hello,

f(x)=2/2^x
f(0)=2/1=2 A:True

f(1)=2/2^1=2/2=1 B:True

f(-2)=2/2^(-2)=2/(1/4)=8 C:false (negative 8)

f(2)= 2/2^2=2/4=1/2 D: False

f(-1)=2/2^(-1)=2/1/2=2*2=4 E: false
Points are A and B

User Daniel Gomez Rico
by
7.6k points