Math - Formulas

Question 1

What is the equation to find the slope between two points?

A(x₁, y₁) and B(x₂, y₂)

Answer 1

(y₂ - y₁)
(x₂ - x₁)

Question 2

What is the equation of a line? (i.e. Slope-Intercept Form)

Answer 2

y = mx + b

m = slope, b = y-intercept

Question 3

What equation is used to find the midpoint between two points(i.e. Midpoint Formula)?

A(x₁, y₁) and B(x₂, y₂)

Answer 3

(x₁ + y₂), (y₁ + y₂)
2________2

Question 4

What word is synonymous with average?

Answer 4

Mean

Question 5

How do you find the mean?

Answer 5

sum of the terms
the number of terms

Question 6

How do you find the average speed?

Answer 6

Total distance
Total time

Question 7

A probability has to be between what two numbers?

Answer 7

0 and 1

Question 8

What equation is used to find probability?

Answer 8

number of good outcomes
total number of outcomes

Question 9

What equation is used to find the probability of 2 Independent events?

Answer 9

Prob(A) x Prob(B)

Question 10

How do you calculate total number of combinations?

Answer 10

Number of A * Number of B…

Question 11

How do you calculate the area of a rectangle?

Answer 11

A = lw

l = length, w = width

Question 12

How do you calculate the perimeter of a rectangle?

`

Question 13

How do you calculate the perimeter of a rectangle?

Answer 13

P = 2l + 2w

l = length, w = width

Question 14

How do you calculate the volume of a rectangular solid

(basically a cube)

Answer 14

V = lwh

l = length, w = width, h = height

Question 15

How do you calculate the volume of a rectangular solid

(basically a cube)

Answer 15

V = lwh

l = length, w = width, h = height

Question 16

How do you calculate the area of a parallelogram?

Answer 16

A = lh

l = length, h = height

Question 17

How do you calculate the area of a triangle?

Answer 17

A = (1/2)bh

b = base, h = height

Question 18

What is the equation for Pythagorean’s Theorem?

Answer 18

a² + b² = c²

a = leg 1, b = leg 2, c = hypotenuse

Question 19

For what type of triangle can you use Pythagorean’s Theorem?

Answer 19

Right Triangle

Question 20

A triangle with 2 equal side lengths is called a(n):

Answer 20

Isosceles Triangle

Question 21

How do you calculate the area of a circle?

Answer 21

A = π r²

r = radius

Question 22

How do you calculate the circumference of a circle?

Answer 22

2 π r

r = radius

Question 23

What trig function is opposite / hypotenuse?

Answer 23

Sine

Question 24

What trig function is adjacent / hypotenuse?

Answer 24

Cosine

Question 25

What trig function is opposite / adjacent?

Answer 25

Tangent

Question 26

What mnenomic can you use to remember sine, cosine, and tangent?

Answer 26

SOH CAH TOA

Question 27

What is the opposite of sine?

Answer 27

Cosecant

Question 28

What is the opposite of cosine?

Answer 28

Secant

Question 29

What is the opposite of tangent?

Answer 29

Cotangent

Question 30

What does Sin²θ + Cos²θ equal?

Answer 30

1