Top up prelim Flashcards
1
Q
what are the three roots for discriminant
A
b2-4ac>0 (+)= Two real distinct roots
b2-4ac=0 = One real repeated root
b2-4ac<0 (-) so no real roots
2
Q
What is the formula for discriminant
A
b2-4ac
3
Q
What is it when (0,0) is always the turning point
A
Y=KX2
4
Q
What is the equation of a straight line?
A
Y-B=M(X-A)
5
Q
What is the equation for gradient?
A
y2-y1
x2-x1
