System of Equations: 0, 1, and Infinite Solutions
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Transcript System of Equations: 0, 1, and Infinite Solutions
Solving System of Equations
that have 0, 1, and Infinite
Solutions
One Solution
Solve the following system of equation algebraically and
graphically:
Both equations equal
y. Set them equal to
each other.
2x 22 3x 28
22 5x 28
50 5x
10 x
y 2x 22
y 3 x 28
10, 2
y 3 10 28 30 28 2
The lines only intersect
once since there is one
solution.
No Solution
Solve the following system of equation algebraically and
graphically:
Add the equations to
eliminate a variable:
2 x 2 y 18
2 x 2 y 6
2 x 2 y 18
2 x 2 y 6
_____________
0 12
No Solution.
The two lines are
parallel. They
never intersect.
Infinite Solutions
Solve the following system of equation algebraically and
graphically:
The two equations are
y 2 x 5
2 y 4 x 10
equivalent. They lie on
top of each other. They
intersect everywhere.
2 2 x 5 4 x 10
4x 10 4x 10
10 10
True
Infinite Solutions.
Every point that satisfies:
y 2 x 5
THE LINES COINCIDE