Chp 1 Test Flashcards
which form doesnt require a table
intercept
find standard form vertex
-b/2a
vertex vertex form
(H,k)
vertex in intercept form
p+q/2
four methods of solving a quadratic function
factoring,
completing the square,
quadratic formula,
taking square roots
five methods of factoring learned to date
GCF, g easy, g hard, diff 2 perf squares, pst
4 steps of solving a quadratic function by factoring
- set equation=0
- factor completely (gcf)
- set all =0
- solve for variables
when to solve by taking square roots
b=0
solve by completing the square When
a=1; *b is even
3 forms of a quadratic function
standard vertex intercept
how to complete the square
set=0, factor/banish c value, use appropriate c value on both sides (b/2)^2, factor, sq root, isolate
what is quad formula
x= (-b +- /— b^2-4ac)/2a
what is the discriminant
b^2-4ac
what to use discriminant for
of solutions
3 possible outcomes when solving a quadratic function
D=0: 1 ratl,
D>0 2 real, D