Exercises: systems with two variables

Test your knowledge!

Put the steps of the equation system solving process in the correct order!
To do this, enter the numbers of the steps in the solution field one after the other without spaces (e.g. 123).
1. Plug the variable into an equation.
2. Set equal the equations $I$ and $II$ .
3. Solve the resulting equation for one variable.
Which of the following describes an intersection point?
- The point with equal function values
- An arbitrary point within the coordinate system
- The vertex of a parabola is also called the intersection point.
What do you need llnear systems of equations for?
- To determine intersection points of two lines - which cannot always be done graphically.
- To determine intersection points of two circles - which cannot always be done graphically.

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