Math

Question 1

What is a parrallogram

Answer 1

Opposite sides are parrallel, IDENTICAL SLOPES

Question 2

what is a rhombus

Answer 2

opposite sides are parrallel, and all sides are the same legnth

Question 3

What is a rectangle

Answer 3

Opposite sides are parrallel, and adjacent sides are perpendicular

Question 4

Square

Answer 4

Opposite sides are parrallel, all sides are the same legnth, adjacent sides are perpendicular

Question 5

Is it in, out or on the circle

Answer 5

Calculate legnth,
if less = in
if more = out
if equal = on

Question 6

What is the perpendicular bisector of a cirlce

Answer 6

Runs through the midpoint of the the chord, and goes through the circle

Question 7

Radius

Answer 7

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

Question 8

Trapezoid

Answer 8

1 pair of opposite side are parallel, parrallel sides are NOT the same legnth

Question 9

Solving graphically

Answer 9

potting both lines to find the POI

Question 10

solving by substitution

Answer 10

isolate one variable in one of the equations, substiture this value into the other equation and solve for remaining variable. Sub this value into either equation to get 2nd variable

Question 11

solvign by elemination

Answer 11

multiply one or both equations such that the coefficients on one of the two variables are the same in both equations. Add/subtract the two equations to eliminate this variable. SUb this value into either equation to get the 2nd variable

Question 12

slope formula

Answer 12

Y2-Y1/X2-X1

Question 13

standard form

Answer 13

Ax+By=C

Question 14

slope intercept form

Answer 14

y=mx+b

Question 15

Midpoint formula

Answer 15

(x2+x1/2), (y2+y1 /2)

Question 16

if two legnths are parallel their slopes are

Answer 16

the same

Question 17

if two lines are perpendicular their slopes are

Answer 17

negative reciprocal

Question 18

equilateral

Answer 18

3 sides are the same side

Question 19

scalene

Answer 19

all sides are different legnths

Question 20

isosceles

Answer 20

2 different angles

Question 21

altitude

Answer 21

e is the perpendicular drawn from the vertex of the triangle to the opposite side.

Question 22

right (perpendicular) bisector

Answer 22

midpoint of opposite side, perpendicular

Question 23

median

Answer 23

midpoint to opp vertex

Question 24

legnth

Answer 24

l= √((x_2-x_1)²+(y_2-y_1)²)

Question 25

sine

Answer 25

opp/hyp

Question 26

cos

Answer 26

adj/hyp

Question 27

tan

Answer 27

opp/adj

Question 28

how to solve for angle

Answer 28

x^-1

Question 29

sine law

Answer 29

side/sin = side/sin =side/sin

Question 30

cosine law solving for side

Answer 30

a2= b2 + c2 - (2bc cos a

Question 31

cosine law solving for angle

Answer 31

cos (A) = (b2+c2 - a2) / 2bc

Question 32

finding shortest distance

Answer 32

equation of the line, perpendicular of that, equation of perp, then legnth

Question 33

what is the axis of symmetry

Answer 33

divides the parabola in half

Question 34

y-value of the vertex is called

Answer 34

optimal value

Question 35

standard form parabola

Answer 35

y=ax2+bx+c

Question 36

factored form quadratic

Answer 36

y=a(x-r)(x-s)

Question 37

vertex form

Answer 37

y=a(x-h)2+k

Question 38

maximum vs minimum

Answer 38

-a value, positive a value

Question 39

what is a root

Answer 39

x intercept

Question 40

when you can't solve by factoring you use

Answer 40

quadratic formula

Question 41

quadratic formula

Answer 41

x= (-b + or - square root b2-4ac)/ 2a

Question 42

what is the discriminant

Answer 42

b2-4ac

Question 43

under the discriminant positive how many roots?

Answer 43

2

Question 44

under the discriminant negative how many roots?

Answer 44

0

Question 45

under the discriminant is 0 how many roots?

Answer 45

1

Question 46

what is the base parabola

Answer 46

y=x^2

Question 47

higher a value means, lower a value mean

Answer 47

thinner, thicker

Question 48

a=+, a=-

Answer 48

+ opens up, - opens down

Question 49

k value

Answer 49

out of the brackets, if k is greater than 0 moves up, bigger than 0 opens down. Vertex is 0,k

Question 50

h value

Answer 50

inside brackets, if h is greater than zero graph goes right (x-h) -> if h is less than zero graph goes left (x+h) <- vertex is h,k axis of symetry is x=h

Question 51

reflected y-int

Answer 51

the other x value that will give you that y value of the y int

Question 52

finite differences

Answer 52

differences between the first differences, i

Question 53

angle of elevation

Answer 53

horizontal is on bottom, looking up from corner

Question 54

angle of depression

Answer 54

horizontal on top, looking down

Question 55

POI of the three perp bisectors is called

Answer 55

circumcenter, if you were to draw a circle from point would hit all vertexes

Question 56

POI of three altitudes

Answer 56

orthocenter

Question 57

POI of three medians

Answer 57

centroid

Question 58

difference of squares

Answer 58

(a+b)(a-b)

Question 59

perfect square

Answer 59

(a+x)^2 = a^2 + ax +x^2 (a-x)^2 = a^2 - ax +x^2