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How do you determine wheather a quadratic function has a maximum or minimum and how do you find it?
Wiki User
∙ 12y ago
In theory you can go down the differentiation route but because it is a quadratic, there is a simpler solution.
The general form of a quadratic equation is y = ax2 + bx + c
If a > 0 then the quadratic has a minimum
If a < 0 then the quadratic has a maximum
[and if a = 0 it is not a quadratic!]
The maximum or minimum is attained when x = -b/2a and you evaluate y = ax2 + bx + c at this value of x to find the maximum or minimum value of the quadratic.
Wiki User
∙ 12y ago
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What is the maximum number of times the graph of the quadratic function can cross the x-axis?
Two.
What is the maximum or minimum of a quadratic equation called?
The vertex.
What is another name for the maximum or minimum point of a quadratic graph?
Apex.
What is maximum or minimum of function?
Addition is the maximum or minimum function in math.
What is the maximum value that the graph of ycosx assume?
Both the function "cos x" and the function "sin x" have a maximum value of 1, and a minimum value of -1.
How do you determine if the graph of a quadratic function has a min or max from its equation?
If x2 is negative it will have a maximum value If x2 is positive it will have a minimum value
What a short example of a maximum of quadratic function?
A quadratic of the form ax2 + bx + c has no maximum if a > 0: it gets infinitely large. If a = 0 then it is not a quadratic. If a < 0 then the quadratic does have a maximum, and it is -D/4a where D is the discriminant = b2 - 4ac
What is the maximum and minimum of quadratic function parent function?
The minimum is the vertex which in this case is 0,0 or the origin. There isn't a maximum.....
How can a quadratic function have both a maximum and minimum point?
It can't - unless you analyze the function restricted to a certain interval.
What is the maximum number of times the graph of the quadratic function can cross the x-axis?
Two.
What function is used to determine highest number in a range?
The "maximum" function.
What name is given to the turning point also known as the maximum or minimum of the graph of a quadratic function?
vertex
How do you tell if a quadratic function is minimum value or a maximum vale?
Standard notation for a quadratic function: y= ax2 + bx + c which forms a parabola, a is positive , minimum value (parabola opens upwards on an x-y graph) a is negative, maximum value (parabola opens downward) See related link.
How do you determine the range of a function?
Find the maximum and minimum values that the function can take over all the values in the domain for the input. The range is the maximum minus the minimum.
Can a quadratic functions have a maximum and a minimum?
Yes
How do you know if a quadratic has a minimum or maximum value?
When the quadratic is written in the form: y = ax2 + bx + c then if a > 0 y has a minimum if a < 0 y has a maximum and if a = 0 y is not a quadratic but y = bx + c, and it is linear. The maximum or minimum is at x = -b/(2a)
What is the maximum or minimum of a quadratic equation called?
The vertex.
