Test 2.3 Review

Question 1

parent equation of quadratics

Answer 1

y=x^2

Question 2

standard form

Answer 2

y=ax^2+bx+c

Question 3

root form

Answer 3

y=a(x-v1)(x-v2)

Question 4

vertex form

Answer 4

y=a(x-h)^2+k

Question 5

if a is a negative

Answer 5

reflect over x-axis

Question 6

if a is bigger than 1

Answer 6

vertical stretch (gets skinnier)

Question 7

if 0<a></a>

Answer 7

vertical compression (gets wider)

Question 8

if h is positive

Answer 8

go left

Question 9

if h is negative

Answer 9

go right

Question 10

if k is positive

Answer 10

up

Question 11

if k is negative

Answer 11

down

Question 12

standard to vertex

Answer 12

completing square

Question 13

standard to root

Answer 13

factoring

Question 14

how to find vertex from standard form

Answer 14

x=-b/2a (substitute in x to find y)

Question 15

root to standard

Answer 15

multiply root form’s parenthesis to find formula and set parenthesis to zero to solve for x value

Question 16

vertex to standard

Answer 16

box method the parenthesis^2 and add the k value to standard equation