Answer:
c =
Step-by-step explanation:
Given
R=
Clear the radical by squaring both sides
R² = b² - 4ac ( subtract b² from both sides )
R² - b² = - 4ac ( multiply all terms by - 1 )
b² - R² = 4ac ( divide both sides by 4a )
= c
Find the solution to the system of equations, x + 3y = 7 and 2x + 4y = 8.
1 answer:
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Answer:
and
.
Step-by-step explanation:
To this relation be a function, the horizontal coordinates can't be equal. So, let's find the value of that makes those coordinates equal.
Using the null factor property, we have
Therefore, the given relation is not a function when and
.