MEASUREMENT & DATA: explain the relationship between 2 variables

Question 1

independent variable (x-axis)

Answer 1

determines value of another varibale

Question 2

dependent variable (y-axis)

Answer 2

depends on at least one other variable

Question 3

positive correlations

Answer 3

both variables increase

variables are directly related

Question 4

negative correlations

Answer 4

if one variable increases with the other variable decreases

variables are inversely related

Question 5

direct variations

Answer 5

y=kx

k=constant; determine k use known values of x & y and solve for k

Question 6

inverse variation

Answer 6

y=k/x

to determine k use known values of x & y solve for k