Al vender una refrigeradora, gané s/. 580. Si después de la venta gasté s/. 1 260 y me queda s/. 480, ¿Cuánto costó la refrigera
1 answer:
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Answer:
B. f -1(x) = x + 2 / 5
Step-by-step explanation:
To find the inverse of a function we need to interchange x and y an solve for y.
Since , then
Add 2 to both sides
Divide both sides by 5
We can conclude that the correct answer is B. f -1(x) = x + 2 / 5