# Praxis I math

## 155 terms · praxis I math (1)

100

multiply

x over 100

index

2

-n

reflexive

symmetric

transitive

a+b

ab

commutative

associative

a(bc)

inverse

-1

distributive

complex

i

negative

0

positive

-1

complex

every

factor

slope

0

0

y

### the ____________ says y-y1= m(x-x1)

point slope formula

ax+ by = c

roots

### once you find the roots of a radical equation you must check them to see if any are __________roots (which means they are not equal when plugged back into the original formula) these roots must be ___________

extranous excluded

parabola

-b/2a

(4ac-b^2)/4a

greater

downward

straight line

equal

ellipse

### in a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________or a __________ or __________(b=0 and a=c)

point circle does not exist

hyperbola

### in a quadratic equation with 2 unknown which has the formula ax^2 + bxy + cy^2 + dx + ey + f the graph is _____________ or a pair of __________ if ( b^2-4ac= 0) which may be coincident or it does not exist

parabola parallel line

### when solving a system of equation involving quadratics and one is linear and the other is quadratic, solve the _______ first , then substitue the found value into the quadratic and solve for the other unknown

linear substitute

### when solving a system of equation with 2 quadratic function, first __________ one equation from the other equation to find isolate one variable, solve for that variable, then ______ and solve for the other variable

subtract substitute

bc

d/c

b/c

(c+d)/d

(c-d)/d

size

line

plane

ray

collinear

distance

bisector

angle

coplanar

vertical

acute

right angle

obtuse angle

straight

reflex

complimentary

supplementary

congruent

bisect

perpendicular

point line

parallel

one

isosceles

congruence

polygon

### is a polygon whose sides are equal in measure

equilateral polygon

### is a polygon whose angles are equal in measurement

equiangular polygon

regular polygon

exterior angle

length number

apothem

### use ____________= 1/2a X p (where a = apothem and p = the perimeter)

area of a polygon

ratio

triangle

vertices

((n-2) (180))/n

scalene

isosceles

equilateral

equiangular

180

obtuse

acute

right

hypotenuse

hyotenuse

altitude

1/2bh

median

mildline

parallelogram

### 2 angles that have their vertices at the endpoints of the same side of a parallelogram are called ____________________

consecutive angles

bh

rectangle

lw

rhomus

1/2 (d1 + d2)

square

side square root

s^2

1/2 (d)^2

trapezoid

1/2h (b1 + b2)

isosceles

circle

arc

secant

chord

central angle

### a __________________ is a circle passing through all the vertices of a polygon

circumscribed circle

pi(d) 2(pi)r

(pi)r ^2

(n/360) X 2pi r

a^3

6a^2

pi r^2 h

2pi r^2 + 2pi rh

4/3 pi r^3

4pi r^2

1/3Bh

1/3 pi r^2 h

### what is the square of ((x1-x2) + (y1-y2)) =

distance between 2 points

function single

dependent

g value

y

exponent

0

1

x