Question

Which equation represents an exponential function that passes through the point (2, 36)?

f(x) = 4(3)x
f(x) = 4(x)3
f(x) = 6(3)x
f(x) = 6(x)3

Answer 1

@nincompoop ?

Answer 2

Any idea?

Answer 3

not at all...

Answer 4

Exponential function means the variable is on the exponent of the expression. Can you see which of the options have x on the exponent?

Answer 5

the first and 3rd one

Answer 6

good,
Now, with the point (2,36), you have if x =2, f(x) =36
between option 1 and 3, which satisfies that condition? (just replace x =2 into it and calculate the result)

Answer 7

it's the 3rd one! right?

Answer 8

Please, don't guess!!! show me your work.

Answer 9

no no I did calculate. I did 6x3x2=36. did I not do it right?

Answer 10

\(3^2=3*3\) it is not 3*2

Answer 11

ohhhhhhhh okay I understand now. Thank you very much

Answer 12

ok. So, which one is the final result?

Answer 13

f(x) = 4(3)^x

Answer 14

yup