This video explains how to write linear equations to model a population with various constant rates of change.

# form

# Perform Linear Regression and Interpret the Meaning of the Slope and Vertical Intercept

This video explains how to perform linear regression on the TI84 and then interpret meaning of the slope and vertical intercept.

# Interpret the Meaning of a Slope and Intercepts Given a Linear Equation (College Savings)

This video explains how to determine the meaning of the slope and intercepts of a linear equation that models the balance of a saving account.

# Interpret the Meaning of a Slope Given a Linear Equation (Profit Equation)

This video explains the meaning of the slope of a linear equation in slope-intercept form.

# Solve a 3×3 System Using an Augmented Matrix (RREF) No Solution

This video explains how to solve a system of 3 equations with 3 unknowns by writing an augmented matrix in reduced row echelon form by hand.

# Solve a 3×3 System Using an Augmented Matrix (RREF) Infinite Solutions

This video explains how to solve a system of 3 equations with 3 unknowns by writing an augmented matrix in reduced row echelon form by hand.

# Solve a 3×3 System Using an Augmented Matrix on the TI-84 (RREF) No Solution

This video explains how to solve a system of linear equations by writing an augmented matrix in reduced row echelon form using the ti-84 graphing calculator.