Answer:
No specific values
Explanation:
To find the absolute minimum and maximum of y=2x-1, we can use the following formulas:

Absolute maximum:

Substituting the function f(x) = 2x-1 into the formulas, we get:
Absolute minimum:

Absolute maximum:

Therefore, the absolute minimum of y=2x-1 is -∞, and the absolute maximum of y=2x-1 is ∞.
Since, the range of y for this function is (-∞, ∞), which means it can take any real value, and there are no specific minimum or maximum values for y in the real number system.