Linear Functions

correlation coefficient

The ________, denoted by r, is a number from −1 to 1 that measures how well a line fits a set of data pairs (x, y)

algebraic methods you

The ________ used to solve systems of linear equations in two variables can be extended to solve a system of linear equations in three variables.

absolute value

The graph is shifted up and is narrower than the graph of the parent ________ function.

y coordinate

The ________ of each point on g is two times the ________ of the corresponding point on the parent function.

Data

________ do not always show an exact linear relationship.

x axis

A reflection in the ________ changes the sign of each output value.

vertical stretch

When the factor is greater than 1, the transformation is a(n) ________.

−1

When r is near ________, the points lie close to a line with a negative slope.

function g

The ________ is a linear function with a slope of 1 and a y- intercept of −4.

positive slope

When r is near 1, the points lie close to a line with a(n) ________.