Question

(Q7) Solve the inequality graphically.
3^-x > 6^-x

Answer 1

C edge

Explanation:

Answer 2

C

Explanation:

We will graph
`3^(-x)` and
`6^(-x)` and find WHERE in the x-axis,
`3^(-x)` is greater than
`6^(-x)`.

Attached is the graph of both the functions. RED color graph is of
`3^(-x)` and BLUE color graph is of
`6^(-x)`.

So, WHICH WHERE IN X-AXIS IS THE RED GRAPH "ABOVE" THE BLUE GRAPH?

We can clearly see that this occurs when x > 0.

Hence, C is the correct answer.