chapters R-1

Question 1

slope intercept form

Answer 1

y=mx + b

Question 2

point slope form

Answer 2

y-y1 = m (x-x1)

Question 3

standard form

Answer 3

ax + by = c

Question 4

parallel lines

Answer 4

same slope
different y int.

Question 5

perpendicular lines

Answer 5

inverse slope (Negative reciprical)
intersect at 90 degree angles

Question 6

slope

Answer 6

rise / run
y2-y1 / x2-x1

Question 7

factoring
1. binomial
2. trinomial (a=1) and (a = NOT 1)

Answer 7

2. ac method

Question 8

function

Answer 8

relation where each x (input) has only ONE y (output).

Must pass vertical line test.
(cannot go straight up and down)

function notation:
y= f(x)

Question 9

domain

Answer 9

set of x values

Question 10

range

Answer 10

set of y values

Question 11

( )

Answer 11

Not included

Question 12

[ ]

Answer 12

Included

Question 13

transformations

Answer 13

g(x) = f( x- h ) + k

Question 14

Horizontal transitions
f(x+c)
f(x-c)

Answer 14

+ : moves left
- : moves right

Question 15

Vertical transitons
+k
- k

Answer 15

+ : moves up
- : moves down

Question 16

reflections

Answer 16

-f(x) : reflects over x - axis
f(-x) :reflects over y - axis

Question 17

quadratic formula

Answer 17

x = [-b ± √(b2 - 4ac)] / 2a

Question 18

vertical
compressions/ stretch

Answer 18

af(x)
a > 1: stretch
a < 1 : compression

Question 19

horizontal
compressions/ stretch

Answer 19

f (bx)

b > 1 : compression
b < 1 : stretch

Question 20

exponent rules

Answer 20

an exponent of zero = 1
when multiplying : ADD exponents
when diving: SUBTRACT exponents
a^-m = 1/ a^m
(a/b)^-m = (b/a)^m
Negative exponent = possitive reciprocal