Parabola Graph.
Chapter 3: Equations
1. PlySmlt 2 Root Finder
2. Exact answers
Factorisation
OR
Manually (formula)
3. D = b^2 - 4ac
D>0, 2 distinct roots
D=0, equal or repeated roots
D<0, no real root
4. ax^2 + bx + c always +ve
when a>0, D<0, curve above x axis
ax^2 + bx + c always -ve
when a<0, D>0, curve below x axis
OR
always +ve or -ve, complete square
a^2 can be smaller or equal to 0
Parabola Graph.
1. GC
y intercept, press 2nd CALC 1, x=0
x intercept, press 2nd CALC 2, left bound and right bound
min pt, press 2nd CALC 3, left bound and right bound
max pt, press 2nd CALC 4, left bound and right bound
tangent, press 2nd DRAW 5, x value
intersection, press 2nd CALC 5, enter, enter
asymptote find manually
absolute sign, press MATHS > 1
