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Name two methods of solving systems of two equations.
(2) Substitution, Elimination, Graphing
Solve:
y=5x-7-3x
-2y=-12
(2,3)
Solve:
y=-4x+8
8x+2y=16
infinitely many solutions
Solve:
(-3,3)
The _______ is the equation that can be minimized or maximized in linear programming.
objective function
The minimum or maximum of an objective function will occur at a __________ of the feasible region
vertex
Given a two-digit natural number, the sum of the tens digit and the units digit is 14. If the tens digit and the units digit are interchanged, the new number is 18 units larger than the given number. Find the given number.
68
Five years ago, the age of Niraj was seven times that of his son Girish. Five years from, his age will be three times that of his son. What is their ages today?
their present ages are 40 years and 10 years.
Solve:
no solution
Find two numbers whose sum is 28 and difference is 2
13 and 15
