Flashcards in Unit 1 Deck (13)

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## What are the three methods to finding a POI?

###
Graphing

Substitution

Elimination

1

## What is the equation of a line?

### y=mx+b

2

## How do you find slope?

### m= y2-y1/x2-x1

3

## Parallel lines have what the same?

### Slope

4

## What is the slope of a horizontal line?

###
0

Ex. Y=2

5

## What is the slope of a vertical line?

###
Undefined slope

Ex. x=6

6

## Distance formula

### D=square root x2-x1 squared + y2-y1 squared

7

## Equation of circle?

### X squared + y squared = r squared

8

## Circumference of circle?

### Pie d or 2 pie r

9

## Area of circle?

### Pie r squared

10

## How do you find an x intercept in y=mx+b?

### Set y=0

11

## What is the axis of symmetry?

###
x=_

(x value of vertex)

12