Polynomials (Chapters 6 & 7)
Lesson 5: Applications of Algebraic Models
Learning Goals of Lesson 5
By the end of this lesson, I can:
-identify what each variable in an equation represents
-substitute given value for each variable into the equation
-solve for the unknown variable in the equation algebraically
-check if my answer is reasonable with the given context
"You can only solve one equation with only one variable!"
If you have more than one variable in an equation, read the question carefully to identify all given values. You should be given a total number of "one less than the number of variables in the equation" in order to solve the equation.
After substituting the given values of all other variables involved in the given equation, you should be left with one equation with one unknown (variable).
Video 1: Problem Solving with a Two-Variable Equation
Video 2: Problem Solving with a Three-Variable Equation
Video 3: Problem Solving with a Four-Variable Equation