Inequalities on the number ray, the coordinate grid, line symmetry
Answers are for parents and teachers.
1
How many steps in all are needed to reach B(4; 9)?
13
2
Find the perimeter of the rectangle with vertices (1; 1), (1; 3), (6; 3), (6; 1) (its sides are 2 and 5).
14
3
Find the largest natural solution of y < 12.
11
4
One half of a symmetrical shape is 17 squares. How many squares is the whole shape?
34
5
How many axes of symmetry does a rectangle that is not a square have?
2