Consider the graph of the quadratic function. Which interval on the x-axis has a negative rate of change?
-3
0-2 to-1
1
0 -1.5 to 0
0 0 to 1
- 2
21
2
3
01 to 2.5
- 2
-3

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.