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Functions

100

what is a Function

Function is a mathematical relationship between two sets of data where each only one output

200

What is non-function 

Non-function is a mathatical relationship between two sets of data where each input has one or more outputs

300

Does it matter if the output (y-value) repeats?

No it doesn't matter if the output repeats it only matters when the input repeats.

400

solve this problem function or not?

(15,80) (10,58) (8,45) (3,2)

its a function none of the X-value repeats.

500

Function or not?

(9,10) (1,3) (1,9) (2,9) (3,3) (3,8)

This is not function because the input of 1 and 3 repeat more then once.

Square roots and numbers

100

what is the formula for sqaure roots

a²+b²=c²

200

solve for hypothenuse

the legs are 8 and 3.

a²+b²=c² 

3²+8²=c²

9+64=c²

c²=73      C=between 8 and 9   C=8.5

300

(14,18,35)

  slove this problem.

a²+b²=c² 

14²+18²=35²

196+324=1,225

520 doesn't equal 1,225

both sides don't match.

400

find leg

39 is a hypothenuse and 17 is a leg

a²+b²=c²

17²+b²=39²

289+b²=1,521

1,521-289=1,232 

b²=1,232

b=about 35.0

B=between 34 and 35

500

square 310, 761, 737 and 518

and round to the nearest 10th

310= 17.6

761= 27.6

737= 27.1

518 = 22.8

real numbers

100

-355

-355 is a real #, rational, and integer

200

164

164 is a real#, rational, integer, whole# and natural#

300

Whats a real number 

real number is all numbers like irrational and rational

400

Is pi(π) irrational or rational

It is irrational because pi continues and never stop.

500

1871

It is real number, rational, irrational, whole number, natural number and integer.

two way tables

100

how do you use a relative frequency

we divide each frequency by the total number of that catorgy in the sample

200

how do you use a two way table

how to use a two way table is we first read the direction then we add those numbers or subtract and thats how it works.

300

what is the frequency of the two way tables

the frequency is to (count) information appearing in the four (or more) interior cells of the table

400

why do we use two way tables

we used them to when there are different sample sizes in a dataset.

500

what is two way table

a combinations of two categorical variables.

scatter plots

100

what is outlier 

outlier is a dot that is mostly left out.

200

what is a line of best

the line of best fit is where the linear equation might fall in the scatter plot.

300

what are the three correlations

positive, negative and no correlations

400

why do we use scatter plots

we used them to observe and show relationship between two numeric varibles.

500

what is a scatter plot

scatter plot is  dots to represent values for two different values