When Line meets a Parabola Flashcards
1
Q
When a straight line meets a parabola what is 1 scenario?
A
The line intersects at 2 points
2
Q
When a straight line meets a parabola, what is another scenario?
A
The line meets the parabola at one point, its a tangent
3
Q
When a straight line meets a parabola, what is the final scenario?
A
The line does not intersect at all
4
Q
When are there 2 points of contact?
A
When b^2-4ac>0
5
Q
When is there 1 point of contact?
A
When b^2-4ac=0
6
Q
When is the 0 points of contact?
A
when b^2-4ac<0
7
Q
If we are asked to prove any of the three scenarios, what equation will we use?
A
b^2-4ac
