Determine all the zeros of y(x)=x−3.
Antwoord 1 correct
Correct
Antwoord 2 optie
x=0
Antwoord 2 correct
Fout
Antwoord 3 optie
x=3
Antwoord 3 correct
Fout
Antwoord 4 optie
x=−3
Antwoord 4 correct
Fout
Antwoord 1 optie
y(x) has no zeros.
Antwoord 1 feedback
Correct: A negative integer power function has no zeros.
Go on.
Antwoord 2 feedback
Wrong: $ is not part of the domain of this function.
Dee: Extra explanation.
Antwoord 3 feedback
Wrong: y(3)=3−3=127≠0.
See Extra explanation.
Antwoord 4 feedback
Wrong: y(3)=3−3=−127≠0.
See Extra explanation.