Let f(x) = x^2 + x - 12. Consider f as a function from the reals to the reals. Is f one-to-one? Is f onto? What is the range of f?
See the attached file.© BrainMass Inc. brainmass.com March 4, 2021, 6:18 pm ad1c9bdddf
See the attached file.
f(x) = x^2 + x - 12
Because, x^2 gives the same value for a +ve as well as for a -ve x, therefore, the function is NOT one-to-one. --Answer
Because, in the next step we will show that the ...
Functions are investigated with regard to one-to-one, onto and range. The solution is detailed and well presented.