Linear Stuff

Linear Regression

100

T or F: I will always use Desmos to help solve linear regression problems.

True

200

Correlation Coefficient is represented by what variable?

r²

300

A correlation coefficient of -0.873 means the line of best fit is _ accurate.

87.3%

400

T or F: The line of best fit represents the exact numbers within and outside a data set.

False (Predictive numbers)

500

A negative correlation means that the two variables have a __ relationship with each other.

inverse 

Substituting Systems

100

What is the Y in the solution of this system: 

y = 4

y =  15x - 36

4

200

What would the substituted equation look like in the system:

y = x+1

y = 3

x+1 = 3

300

What is the ordered pair of the system:

y = 3

y = x - 1

(4,3)

400

What is the ordered pair for the system:

y = x + 1

y = 2x - 3

(4,5)

500

What is the ordered pair of the system:

3y = 6x +12

y + 3x = 9

(1,6)