2. Standard Form of a Quadratic Function
Sign In
Example Solution: Substitution Method, because one variable is already isolated.
Solution: (27,15)
In this system of equations, at least one of the variables has a coefficient of 1. Moreover, it is isolated. Therefore, we will approach its solution with the Substitution Method. When solving a system of equations using substitution, there are three steps.
(II):y= 2/3x-3
(II):Distribute 3
(II):Add terms
(II): LHS+9=RHS+9
(I):x= 27
(I):a/c* b = a* b/c
(I):Calculate quotient
Subtract term