Lines of best fit (regression lines) must touch all dada points on a scatter plot true or false

False

Step-by-step explanation:

A regression line tries to average out all data points, so it may not touch any of them.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.