Mister Exam
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-
How to use it?
- Graphing y =:
- -x^2-8x+9
- x^2+6x-1
- 5x^2-3x+4
- -2x^2-x+5
-
Identical expressions
- (eleven -17x^ two)/x
- (11 minus 17x squared ) divide by x
- (eleven minus 17x to the power of two) divide by x
- (11-17x2)/x
- 11-17x2/x
- (11-17x²)/x
- (11-17x to the power of 2)/x
- 11-17x^2/x
- (11-17x^2) divide by x
-
Similar expressions
- (11+17x^2)/x
Graphing y = (11-17x^2)/x
The solution
You have entered
[src]
2
11 - 17*x
f(x) = ----------
x
$$f{\left(x \right)} = \frac{- 17 x^{2} + 11}{x}$$
f = (11 - 17*x^2)/x
The graph of the function
The domain of the function
The points at which the function is not precisely defined:
$$x_{1} = 0$$
$$x_{1} = 0$$
The points of intersection with the X-axis coordinate
Graph of the function intersects the axis X at f = 0
so we need to solve the equation:
$$\frac{- 17 x^{2} + 11}{x} = 0$$
Solve this equation
The points of intersection with the axis X:
Analytical solution
$$x_{1} = - \frac{\sqrt{187}}{17}$$
$$x_{2} = \frac{\sqrt{187}}{17}$$
Numerical solution
$$x_{1} = 0.804399666539844$$
$$x_{2} = -0.804399666539844$$
so we need to solve the equation:
$$\frac{- 17 x^{2} + 11}{x} = 0$$
Solve this equation
The points of intersection with the axis X:
Analytical solution
$$x_{1} = - \frac{\sqrt{187}}{17}$$
$$x_{2} = \frac{\sqrt{187}}{17}$$
Numerical solution
$$x_{1} = 0.804399666539844$$
$$x_{2} = -0.804399666539844$$
Extrema of the function
In order to find the extrema, we need to solve the equation
$$\frac{d}{d x} f{\left(x \right)} = 0$$
(the derivative equals zero),
and the roots of this equation are the extrema of this function:
$$\frac{d}{d x} f{\left(x \right)} = $$
the first derivative
$$-34 - \frac{- 17 x^{2} + 11}{x^{2}} = 0$$
Solve this equation
Solutions are not found,
function may have no extrema
$$\frac{d}{d x} f{\left(x \right)} = 0$$
(the derivative equals zero),
and the roots of this equation are the extrema of this function:
$$\frac{d}{d x} f{\left(x \right)} = $$
the first derivative
$$-34 - \frac{- 17 x^{2} + 11}{x^{2}} = 0$$
Solve this equation
Solutions are not found,
function may have no extrema
Inflection points
Let's find the inflection points, we'll need to solve the equation for this
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = 0$$
(the second derivative equals zero),
the roots of this equation will be the inflection points for the specified function graph:
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = $$
the second derivative
$$\frac{2 \cdot \left(17 - \frac{17 x^{2} - 11}{x^{2}}\right)}{x} = 0$$
Solve this equation
Solutions are not found,
maybe, the function has no inflections
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = 0$$
(the second derivative equals zero),
the roots of this equation will be the inflection points for the specified function graph:
$$\frac{d^{2}}{d x^{2}} f{\left(x \right)} = $$
the second derivative
$$\frac{2 \cdot \left(17 - \frac{17 x^{2} - 11}{x^{2}}\right)}{x} = 0$$
Solve this equation
Solutions are not found,
maybe, the function has no inflections
Vertical asymptotes
Have:
$$x_{1} = 0$$
$$x_{1} = 0$$
Horizontal asymptotes
Let’s find horizontal asymptotes with help of the limits of this function at x->+oo and x->-oo
$$\lim_{x \to -\infty}\left(\frac{- 17 x^{2} + 11}{x}\right) = \infty$$
Let's take the limit
so,
horizontal asymptote on the left doesn’t exist
$$\lim_{x \to \infty}\left(\frac{- 17 x^{2} + 11}{x}\right) = -\infty$$
Let's take the limit
so,
horizontal asymptote on the right doesn’t exist
$$\lim_{x \to -\infty}\left(\frac{- 17 x^{2} + 11}{x}\right) = \infty$$
Let's take the limit
so,
horizontal asymptote on the left doesn’t exist
$$\lim_{x \to \infty}\left(\frac{- 17 x^{2} + 11}{x}\right) = -\infty$$
Let's take the limit
so,
horizontal asymptote on the right doesn’t exist
Inclined asymptotes
Inclined asymptote can be found by calculating the limit of (11 - 17*x^2)/x, divided by x at x->+oo and x ->-oo
$$\lim_{x \to -\infty}\left(\frac{- 17 x^{2} + 11}{x^{2}}\right) = -17$$
Let's take the limit
so,
inclined asymptote equation on the left:
$$y = - 17 x$$
$$\lim_{x \to \infty}\left(\frac{- 17 x^{2} + 11}{x^{2}}\right) = -17$$
Let's take the limit
so,
inclined asymptote equation on the right:
$$y = - 17 x$$
$$\lim_{x \to -\infty}\left(\frac{- 17 x^{2} + 11}{x^{2}}\right) = -17$$
Let's take the limit
so,
inclined asymptote equation on the left:
$$y = - 17 x$$
$$\lim_{x \to \infty}\left(\frac{- 17 x^{2} + 11}{x^{2}}\right) = -17$$
Let's take the limit
so,
inclined asymptote equation on the right:
$$y = - 17 x$$
Even and odd functions
Let's check, whether the function even or odd by using relations f = f(-x) и f = -f(-x).
So, check:
$$\frac{- 17 x^{2} + 11}{x} = - \frac{- 17 x^{2} + 11}{x}$$
- No
$$\frac{- 17 x^{2} + 11}{x} = \frac{- 17 x^{2} + 11}{x}$$
- No
so, the function
not is
neither even, nor odd
So, check:
$$\frac{- 17 x^{2} + 11}{x} = - \frac{- 17 x^{2} + 11}{x}$$
- No
$$\frac{- 17 x^{2} + 11}{x} = \frac{- 17 x^{2} + 11}{x}$$
- No
so, the function
not is
neither even, nor odd
The graph