SOLUTION: Find the exponential function f=ca^x whose graph goes through the points (0,3)and (2,12)? a= c=

Algebra ->  Expressions-with-variables -> SOLUTION: Find the exponential function f=ca^x whose graph goes through the points (0,3)and (2,12)? a= c=       Log On


   

Question 1137333: Find the exponential function f=ca^x whose graph goes through the points (0,3)and (2,12)?
a=
c=
Found 3 solutions by josgarithmetic, MathLover1, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
Find the exponential function f=ca%5Ex whose graph goes through the points (0,3) and (2,12)?
a=
c=

f=ca%5Ex....use the points (0,3)
3=ca%5E0
3=c%2A1
c=3
f=3a%5Ex....use the points (2,12)
12=3a%5E2
12%2F3=a%5E2
a%5E2=4
a=sqrt%284%29
a=2
f=3%2A2%5Ex



check: f=3%2A%282%29%5Ex




Answer by ikleyn(52814) About Me  (Show Source):
You can put this solution on YOUR website!
.

The "solution" by @josgarithmetic is totally   W R O N G.

You can easily see it,  if you substitute the given values into the left and right sides of his  "solution".

For your safety,  ignore his solution and his answer.


Keep yourself as far as you can from his "solutions".

Half of them are wrong.

This person is absolutely unqualified to be a tutor.