Math Flashcards
Prime numbers
A number that can’t be divided by another number other than 1 and itself.
Composite number
A number that can be divided by 1, itself, and at least one other whole number
Factors
When a whole numbers has other divisors besides 1 and itself, these others divisors are called factors
N factorial
The product of every number between a number and another number multiplied together. The symbol is x!
Reciprocal
The number that you multiply by a number to get 1. Or the Inverse of a value or number such as 1/2 to 2/1
Mixed number
A number that is made up of a whole number and a fraction
For example 5 1/2
What is angle of elevation and angle of depression?
The term angle of elevation denotes the angle from the horizontal upward to an object. An observer’s line of sight would be above the horizontal. The term angle of depression denotes the angle from the horizontal downward to an object. An observer’s line of sight would be below the horizontal.
Sinusoidal
they have a wavy shape that repeats periodically. Tan(x) also repeats periodically, but its graph has discontinuities (places where the function is not defined) and vertical asymptotes.
Asymptote
ˈasəm(p)ˌtōt/
a line that continually approaches a given curve but does not meet it at any finite distance.
What are amplitude, midline, and period?
Amplitude, midline, and period are all terms we use to describe sinusoidal graphs. Amplitude is the height of the wave from the midline, midline is the horizontal line around which the wave oscillates, and period is the length of one complete cycle.
Constant
a quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions.
- Use a closed dot for what inequality symbols?
- Use an open dot what what inequality symbols?
- ≤ and ≥
- < and >
Inequality
- Parentheses indicate?
- Brackets indicate?
- Open
- Closed
Write interval notation for
- a ≥ 1
- 6 > y
- [1,♾️)
- (-♾️, 6)
Always left to right
Follow the same rules to solve an inequality as you do an equation. ___________the inequality symbol if you multiply or divide by______
number.
- Switch
- Negative