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The answer is two.
Despite its name seems to suggest something to do with four, in a quadratic equation
the unknown appears at most to the power of two and so is said to be of second degree.
The theorem than pertains here is that the number of roots an equation has is equal to
its degrees. However, some of the roots can be repeated - an nth degree equation need
not have n different roots. Also the roots do not have to be real. However complex roots
( no real) come in pairs so an equation of odd degree must have at least one real root.
A quadratic possibly has no real roots.
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What does it mean when the graph of a quadratic function crosses the x axis twice?
When the graph of a quadratic crosses the x-axis twice it means that the quadratic has two real roots. If the graph touches the x-axis at one point the quadratic has 1 repeated root. If the graph does not touch nor cross the x-axis, then the quadratic has no real roots, but it does have 2 complex roots.
Can the graph of a rational function have more than one vertical asymptote?
Assume the rational function is in its simplest form (if not, simplify it). If the denominator is a quadratic or of a higher power then it can have more than one roots and each one of these roots will result in a vertical asymptote. So, the graph of a rational function will have as many vertical asymptotes as there are distinct roots in its denominator.
Why do you use square roots to solve quadratic equations?
Because it's part of the quadratic equation formula in finding the roots of a quadratic equation.
How many roots does a quadratic equation in one variable have?
A quadratic equation has two roots. They may be similar or dissimilar. As the highest power of a quadratic equation is 2 , there are 2 roots. Similarly, in the cubic equation, the highest power is 3, so it has three equal or unequal roots. So the highest power of an equation is the answer to the no of roots of that particular equation.
What is the definition of a Vertex form of a quadratic function?
it is a vertices's form of a function known as Quadratic
