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  2. For business economics
  3. Chapter 1: Functions of one variable
  4. Power functions and polynomial functions
  5. Linear functions
  6. Exercise 3

Exercise 3

Determine the point of intersection of the graphs of the functions y(x)=7x−5 and z(x)=−3x+11.
(4,23)
(1016,−58)
(85,615)
The correct answer is not among the other options.
Determine the point of intersection of the graphs of the functions y(x)=7x−5 and z(x)=−3x+11.
Antwoord 1 correct
Correct
Antwoord 2 optie
(4,23)
Antwoord 2 correct
Fout
Antwoord 3 optie
(1016,−58)
Antwoord 3 correct
Fout
Antwoord 4 optie
The correct answer is not among the other options.
Antwoord 4 correct
Fout
Antwoord 1 optie
(85,615)
Antwoord 1 feedback
Correct: 7x−5=−3x+11⇔10x−5=11⇔10x=16⇔x=1610⇔x=85
y(85)=615.

Go on.
Antwoord 2 feedback
Wrong: Consider the minus-signs.

Try again.
Antwoord 3 feedback
Wrong: Pay attention when dividing.

Try again.
Antwoord 4 feedback
Wrong: The correct answer is among them.

Try again