# math exam Flashcards

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created 1 year ago by lhun9432
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1

y=mx+b

linear function

2

y=IxI

linear absolute function

3

y= ax

exponential function

4

y=a2+bx+c

5

straight line across graph

linear function

6

v shape on graph

linear absolute function

7

half curve across graph

exponential function

8

u shape on graph

9

f(x)=x

constant function

10

shape of line changing over time

constant function

11

arithmetic recursive formula

an =an-1 times r

12

geometric recursive formula

gn= gn-1 times r

13

arithmetic explicit formula

an=a1+d(n-1)

14

geometric explicit formula

gn=gn times rn-1

15

what is r is sequence equations?

r is common ratio or difference. how much the sequence changes

16

what is n in a sequence equation?

n is the number or the term

17

what is a or g in a sequence equation?

The first term of the sequence

18

when rounding to nearest whole number what do you change if theres a decimal?

If the decimal is over 5 you go up one if its under 5 you just take it away

19

what is the domain of a sequence?

positive or neg #'s

20

when do you use a closed circle on the number line?

when the number is less /greater then or equal to then x

21

when do you use a open circle on the number line?

when the number is less or greater then x

22

how do you describe a graph?

write if its increasing and or decreasing what type of function its shape if its discrete or continuous

23

what is a discrete graph?

each input only has on output is a function and points are not connected

24

what is a continuous graph?

starts at one specific point points are connected (if its not discrete )

25

what is correlation

relationship or connection between two or more things

26

what is causlation

the action of causing something

27

when do you keep awnser as a simplified fraction?

when the answer has a decimal in y int. or compound inequality problems.

28

when do you use or?

when "paths" are going opposite ways and don't overlap.

29

when do you use and?

when there's a line between both points connecting them or they overlap.

30

when do you flip sign around?

when dividing by a neg #

31

whats the easiest way to find y int?

ignore x then solve

32

what is no solution?

no x false statment

33

what is one solution

x = #

34

what is infinite solution

x goes away true statement