SOLUTION: identify the exponential function of the form f(x)=a(2^x)+b graph points provided are (2,1) and (0,-2) and the lines runs horizontal to y=-3 a. f(x)=3(2^x) b. f(x)=2^x-3 c.

Algebra ->  Graphs -> SOLUTION: identify the exponential function of the form f(x)=a(2^x)+b graph points provided are (2,1) and (0,-2) and the lines runs horizontal to y=-3 a. f(x)=3(2^x) b. f(x)=2^x-3 c.       Log On


   

Question 46857: identify the exponential function of the form f(x)=a(2^x)+b graph points provided
are (2,1) and (0,-2) and the lines runs horizontal to y=-3
a. f(x)=3(2^x)
b. f(x)=2^x-3
c. f(x)=2(2^x)-4
d. f(x)=2^x-2
the only one that makes sense to me is D
so that when x=0, y=-2 which is point given on the line.
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = a(2^x) + b
f(x) = a(2^x) - 3 use P(0,-2)
-2 = a - 3
1 = a
f(x) = (2^x) - 3
graph%28600%2C600%2C-10%2C10%2C-10%2C10%2C-3%2C2%5Ex-3%29