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# Algebra unit 5 vocab

TermDefinition
The Quadratic formula will not give us the coordinates of the points of intersection of a line and a quadratic when the value of the discriminant, b^2-4ac, is Negative
Any value or values for a variable or variables that make an equation or inequality true Solution
If an inequality contains the symbols greater than equal to or leas than equal to it would be graphed as solid line
if an inequality contains the less than or greater than symbols the graph line will be Dashed line
what number is a number of the form bi where b is a real number and i^2=-1 Imaginary
A Number of the form a+bi where a and b are real numbers and i^2=-1 Complex
The conjugate of a complex number a+bi is ? the complex number a-bi
a quantity that has both length an direction Vector
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