Properties of a parabola
Not what you're looking for?
Find the domain, range and x intercepts of the following problem approximate to two decimal places of the function
y=3x^2-30x+5
Purchase this Solution
Solution Summary
The properties of a parabola are discussed. The x-intercepts are determined.
Solution Preview
Domain is the set of x values for which the function is defined.
In this function, any value of x will evaluate to a number. Thus the domain of the function is all the real numbers.
As for the range - this is the set of values y can get.
The function is a parabola. Since the coefficient of x^2 is positive, this function has a minima (The maximal value is infinity - just plug in x=infinity or x=-infinity and you'll see).
To calculate the minima, we take the first derivative with respect to x and equate it to zero:
...
Purchase this Solution
Free BrainMass Quizzes
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.