Name: Knowunity
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oIZUFJdgBrXdoTfTuFfH

Study note

~Taffi~

United States of America

DEFAULT (US)

Math (SAT®)

EVERY FORMULA YOU NEED FOR SAT

Problem solving and data analysis

Data interpretation

SAT Formula list.
1 Percent Change formula
Use the formula below to find the percent change.
between two numbers.
1
final-initial x 100 =% change
initial
- (+) result = % increase
-→-→-> (-) result =
% decrease
2 X-intercepts, Roots, Zeros
→ Where the graph crosses the x-axis and makes
Trigger
factoring (When numbers are simple)
Y=x²+6x +5² → y = (x+5) (x+1)
Quadratic Formula (Numbers are not facturable)
y = x² + 4x=4
→→b ± √b²-4ac:
Qa
3 Sum / Product of the Roots
Sum of the roots -
Product of the roots: C
a
a
ses y=0_₂
VE
Use this formula
-If the question asks to find sum or product of the roots!
CS CamScanner Vertex Formula
The maximum/minimum point of the parabola Ch.k.)
which can be found in two ways..
Ox-coordinate
b=2==b
20
(11) Midpoint Method
Vertex is always located in the middle
two x-intercepts...
Midpoint = (x1+1₂)
2
5 Vertex form & Standard Form
Vertex form: y= a (x-h)²+k
→shows the location of the vertex
-max/min
as constants
6 Discriminants
d=b² 4a c
of the
or coefficients (hik),
-Serves two purposes.
O Identify the number of roots (intersections) in a
parabola and a line.
ⒸH- Understanding results.
d<0 → No root (intersection)
d=0One root (intersection)
do Two roots Cintersection)
CS CamScanner SOH-CAH-TOA
Sino: Ope
Hyp
Cos=
Adg
нур
tan 0 = Opp
Adj
Rules SCT could represent side lengths, but more commonly
will represent a side length Ra RATIO.
Complimentary Rule
□ Equation
Sin (x) = cos (90-1)
cos(x) = sin
2 (90-2)
*When sin and cos are equal, their angles
sum to 90
Sector
Arc length
Arc Length - Part of the circumference
Arc length = 2πr x Angle
360
Sector Area
=
Part of the area.
Xr²x Angle
360
represents the fraction/portion of the
Theight: The Angle
360
circle wou're finding.
CS CamScanner 11
Equation of a circle on the Coordinate
Plane
Equation : (n-h)² + (y-k)² z_p²
Distance Formula
d = √ (x₂-x²)² + (y₁ - y₁) ²
(12) Special Right Triangles.
45 5√2
A
22
2√3
X5
Volume
V=lwh
S
S
ԿՏ
14 Density
D= M₁₂
(5) Growth & Decay Formula
| M = mass, V=Volume, D= Density
A= P(1 + r) + |A= Total amount,
t= years /time
1
P= Principal, r = rate"I
16 Sum of interior Angles & Size of one angle
180(7-2)
180 (0-2) In = sides
CS CamScanner

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Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

13 M

#1

950 K+

Still not sure? Look at what your fellow peers are saying...

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

The application is very simple and well designed. So far I have found what I was looking for :D

Love this App ❤️, I use it basically all the time whenever I'm studying

EVERY FORMULA YOU NEED FOR SAT

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

13 M

#1

950 K+

Still not sure? Look at what your fellow peers are saying...

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

The application is very simple and well designed. So far I have found what I was looking for :D

Love this App ❤️, I use it basically all the time whenever I'm studying