# Location: **N° ` .", E° ` ."**

To define the coordinates of this point, you have to solve the tasks, that are hidden under the question marks.

Suitable for: Grade 7th

- Broken line and elements, elementary broken line, closed broken line, broken lines length, polygon, angles, edges peaks, diagonal, polygon perimeter.
- Opposite, adjacent angles, perpendiculars against a straight line.
- Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.
- Variable value
- Quadrant
- Numerical module
- Quadrant
- Monomial normal form
- Concept of equation.
- Equivalent equations.
- Equation properties.
- Three point mutual arrangement.
- Opposite, adjacent angles, perpendiculars against a straight line.
- Equal triangles, appropriate elementrs, similar properties and signs.
- Numerical equalities.
- Monomial coefficient
- Function
- Numerical normal form
- Linear inequality solution
- Conditioned inequality properties.
- Linear equations ax + b = 0, where a, b ∈ Q
- Numerical module
- Point, straight line, plane, geometric figure
- Subscript concept: base, index, degree
- Abscissa axis
- Numerical expression.
- Equation roots.
- Equivalent equations.
- Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
- Conditioned inequality properties
- Function expression with formula, table, diagram
- Trinomial.
- Coordinate axis and point coordinate
- Equivalent inequalities
- Identical expression transformation.
- Numerical equalities.
- Mutually equal monomials
- Linear inequality solution
- Similar polynomials.
- Conditioned inequality properties.
- Coordinate beginning point
- Function y = x²