SOLUTION: Express each equation in slope-intercept form. Without graphing the equstions, state whether the system of eqations has exactly one solution, no solution, or an infinite number of

Question 241622: Express each equation in slope-intercept form. Without graphing the equstions, state whether the system of eqations has exactly one solution, no solution, or an infinite number of solutions.
x + 4y = -5
4x + 16y = -20
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Express each equation in slope-intercept form. Without graphing the equstions, state whether the system of eqations has exactly one solution, no solution, or an infinite number of solutions.
x + 4y = -5
4x + 16y = -20
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The 2nd eqn is 4 times the first, they're dependent.
One eqn with 2 unknowns --> an infinite number of solutions.
--------
x + 4y = -5
y = (-1/4)x - 5/4
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