Curves:
others: the circle
A circular curve and a linear graph is shown, together with the points where they cross.
Please enable Java for an interactive construction (with Cinderella).
Find out how many crossing points there are in the following cases.
circle centre (0,0) radius 2
y = 2x-1
crossing points: 0
1
2
circle centre (0,2) radius 3
y = -1
crossing points: 0
1
2
circle centre (-2,1) radius 3
y = 3x-3
crossing points: 0
1
2
circle centre (-4,2) radius 4
y = -x
crossing points: 0
1
2
