Question

If f Superscript negative 1 Baseline (x) = negative one-fifth x, what is f Superscript negative 1 Baseline (x) = one-fifth x?
mc002-3.jpg
mc002-4.jpg
mc002-5.jpg
mc002-6.jpg

Answer 1

I can't see the image files you referenced. Could you re-upload or describe them?

Based on the text: if f^{-1}(x) = -(1/5)x, then f(x) is the inverse of that linear map. The inverse of g(x)=ax (a ≠ 0) is g^{-1}(x)=(1/a)x, so here

- If f^{-1}(x) = -(1/5)x, then f(x) = -5x.

(If you instead meant f^{-1}(x) = (1/5)x, then f(x) = 5x.)

Tell me which interpretation is correct or upload the images and I’ll identify the matching graph.