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  3. Chapter 1: Functions of one variable
  4. Definitions
  5. Function of one variable
  6. Exercise

Exercise

Consider the function $y(x)=9x+2$. The input variable $x$ has a value of $5$. Determine the function value.
$47$
$5$
$\frac{1}{3}$
$16$
Consider the function $y(x)=9x+2$. The input variable $x$ has a value of $5$. Determine the function value.
Antwoord 1 correct
Correct
Antwoord 2 optie
$5$
Antwoord 2 correct
Fout
Antwoord 3 optie
$\frac{1}{3}$
Antwoord 3 correct
Fout
Antwoord 4 optie
$16$
Antwoord 4 correct
Fout
Antwoord 1 optie
$47$
Antwoord 1 feedback
Correct: $y(5)=9\cdot 5+2=47$.

Go on.
Antwoord 2 feedback
Wrong: The function value is not the same as the input variable.

See Functions of one variable.
Antwoord 3 feedback
Wrong: Determine $y(5)$.

See Functions of one variable.
Antwoord 4 feedback
Wrong: The prescription of the function is not given by $y(x)=9+x+2$.

Try again.