Question

Select the correct answer from each drop-down menu.
Consider the function y=f(x)=(1/2)^x.

Answer 1

The value of f(-7) is ? The value of f(5), rounded to the nearest ten thousandth, is ?

Answer 2

@matthew1286

Answer 3

@sammixboo

Answer 4

@perl @Megatronus117

Answer 5

@Michele_Laino

Answer 6

here we have to replace x with -7, so we get:
\[f\left( { - 7} \right) = {\left( {\frac{1}{2}} \right)^{ - 7}} = ...?\]

Answer 7

now, you have to apply this property:
\[{\left( {\frac{1}{a}} \right)^{ - m}} = {a^m}\]
what do you get?

Answer 8

@Smileyside