Question

Which exponential function is represented by the table below?

Answer 1

It should be C

Explanation:

Substituting in a value of x,

4 * ( 1/2 )^x 4 * ( 1/2 )^x

= 4 * ( 1/2 )^ 2 = 4 * ( 1/2 )^ -2

= 4 * 1/4 = 4 * 4

= 1 = 16

C checks out, and all the other options don't equal to the values on the table.