SAT Formulas

Studied by 1334 people
5.0(4)
get a hint
hint

Slope of a Line

1 / 20

Tags and Description

21 Terms

1

Slope of a Line

m = (y2-y1)/(x2-x1)

New cards
2

Slope-Intercept Form

y = mx+b

New cards
3

Point-Slope Form

y-y1 = m(x-x1)

New cards
4

Midpoint Formula

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

New cards
5

Distance Formula

distance = sqrt((x2-x1)²+(y2-y1)²)

New cards
6

Length of an Arc

length = (n/360)2pir

New cards
7

Area of a Sector

area = (n/360)pir²

New cards
8

x = (-b±sqrt(b²-4ac))/2a
y = ax²+bx+c

New cards
9

SOHCAHTOA

New cards
10

Probability

# of favorable outcomes/total number of outcomes

New cards
11

Circle Equation

(x-h)²+(y-k)²=r²
h = x coordinate of the middle of the circle
k = y coordinate of the middle of the circle

New cards
12

Exponential Growth

y = a(1+r)^t
a = initial value
r = rate
t = time

New cards
13

Vertex of a Parabola

x = -b/2a

New cards
14

Vertex Form

a(x-h)²+k
vertex = (h, k)

New cards
15

Pythagorean Theorem

a²+b² = c²

New cards
16

Distance = Rate x Time

d = rt

New cards
17

Sine & Cosine

sin(x) = cos(90-x)

New cards
18

Discriminant

b²-4ac

b²-4ac < 0 | no real solutions
b²-4ac = 0 | 1 real solution
b²-4ac > 0 | 2 real solutions

New cards
19

Pythagorean Triples

3, 4, 5
5, 12, 13
7, 24, 25
8, 15, 17
can be multiples of any of these too

New cards
20

Perpendicular Slope

opposite reciprocal
neg → pos or pos → neg, then swap numerator/denominator

New cards
21

Sum of Angles

sum = (n-2)180
n = number of sides

New cards

Explore top notes

Note
Studied by 9 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 13 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 1 person
Updated ... ago
5.0 Stars(1)
Note
Studied by 5 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 14 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 2286 people
Updated ... ago
5.0 Stars(3)
Note
Studied by 6 people
Updated ... ago
5.0 Stars(1)
Note
Studied by 10 people
Updated ... ago
5.0 Stars(1)

Explore top flashcards

Flashcard31 terms
Studied by 8 people
Updated ... ago
5.0 Stars(2)
Flashcard50 terms
Studied by 6 people
Updated ... ago
4.0 Stars(2)
Flashcard28 terms
Studied by 2 people
Updated ... ago
5.0 Stars(2)
Flashcard141 terms
Studied by 16 people
Updated ... ago
5.0 Stars(1)
Flashcard64 terms
Studied by 16 people
Updated ... ago
5.0 Stars(1)
Flashcard40 terms
Studied by 162 people
Updated ... ago
4.8 Stars(8)
Flashcard31 terms
Studied by 1 person
Updated ... ago
5.0 Stars(1)
Flashcard54 terms
Studied by 27 people
Updated ... ago
5.0 Stars(1)