Please if someone can help with this question

Question

Find the inverse function of f algebraically.

f(x) = 7x

f ⁻¹(x)

Use a graphing utility to graph both f ⁻¹

 and f

 in the same viewing window. Describe the relationship between the graphs.

Are The graphs are reflections in the line y = x.

AreThe graphs are reflections in the x-axis. 

Are   The graphs the same.

AreThe graphs are reflections in the line y = −x.

Answer 1

f = 7x

f^-1 = x/7

are reflections about x=y