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How do you solve linear equation and quadratic equation of Domain and Range?

Sagot :

If its only linear equation
the domain is {x/x is an element of real numbers}
and the range is {y/y is an element of real numbers}
because x and y have infinite values.

While if its quadratic equations:
the domain is {x/x is an element of real numbers}
and the range is {y/y is an element of real numbers y>(4ac+b²)/2}
if the a is negative {y/y is an element of real numbers, y<(4ac+b²)/2}
because y has specific values to be satisfying x and x has a wide range of values
Hope this helps =)