Flashcards in 4.1/4.2/4.9 Deck (12):

1

## Parent function for quadratic

### Y=x^2

2

## Graphing y=ax

### A* whatever the x value is

3

## Comparing parent quadratic to y=ax+c

###
|a|>1=stretch

|a|<1= shrink

A<0 reflection

C is vertical shift

4

## Standard form for quadratic a

### Y= ax^2+bx+c

5

## How to graph Y= ax^2+bx+c

###
A>o opens up

A

6

## How to find max and minimums of Y= ax^2+bx+c

###
-(b/2a)

Plug in x and find y

If a0 opens up so minimum

7

## Vertex form for quadratic

### Y=a(x-h)^2+k

8

## What do the variables represent in Y=a(x-h)^2+k

###
A is opening up or down

H is horizontal shifts

K is vertical shifts

Vertex is h k

9

## What is intercept form of quadratic

### Y=a(x-p)(x-q)

10

## What do the variables represent in Y=a(x-p)(x-q)

###
P and Q are x intercepts

Axis of symmetry P+Q/2

Vertex find x, then plug in for y

11

## What does foil represent

###
First

Outer

Inner

Last

12