Mister Exam
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-
How to use it?
- Graphing y =:
- x^3+3x^2-9x+15
- -x^2+4x
- x^2+4x+2
- x^2-2x-8
- Derivative of:
-
4/sqrt(x)
- Integral of d{x}:
- 4/sqrt(x)
-
Identical expressions
- four /sqrt(x)
- 4 divide by square root of (x)
- four divide by square root of (x)
- 4/√(x)
- 4/sqrtx
- 4 divide by sqrt(x)
-
Similar expressions
- (x-4)/sqrt(x^2+8)
- lim+-4(x-4)/(sqrt(x)-2)
- 4/sqrt(x^2+16)
- 4/sqrtx^2+8
- (sqrt(x)-4)/(sqrt(x^2-x)-4)
Graphing y = 4/sqrt(x)
The solution
You have entered
[src]
4
f(x) = -----
___
\/ x
$$f{\left(x \right)} = \frac{4}{\sqrt{x}}$$
f = 4/(sqrt(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:
$$\frac{4}{\sqrt{x}} = 0$$
Solve this equation
Solution is not found,
it's possible that the graph doesn't intersect the axis X
so we need to solve the equation:
$$\frac{4}{\sqrt{x}} = 0$$
Solve this equation
Solution is not found,
it's possible that the graph doesn't intersect the axis X
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
$$- \frac{2}{x^{\frac{3}{2}}} = 0$$
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
$$- \frac{2}{x^{\frac{3}{2}}} = 0$$
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
$$\frac{3}{x^{\frac{5}{2}}} = 0$$
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
$$\frac{3}{x^{\frac{5}{2}}} = 0$$
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
$$\lim_{x \to -\infty}\left(\frac{4}{\sqrt{x}}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the left:
$$y = 0$$
$$\lim_{x \to \infty}\left(\frac{4}{\sqrt{x}}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the right:
$$y = 0$$
$$\lim_{x \to -\infty}\left(\frac{4}{\sqrt{x}}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the left:
$$y = 0$$
$$\lim_{x \to \infty}\left(\frac{4}{\sqrt{x}}\right) = 0$$
Let's take the limit
so,
equation of the horizontal asymptote on the right:
$$y = 0$$
Inclined asymptotes
Inclined asymptote can be found by calculating the limit of 4/(sqrt(x)), divided by x at x->+oo and x ->-oo
$$\lim_{x \to -\infty}\left(\frac{4}{\sqrt{x} x}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the right
$$\lim_{x \to \infty}\left(\frac{4}{\sqrt{x} x}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the left
$$\lim_{x \to -\infty}\left(\frac{4}{\sqrt{x} x}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the right
$$\lim_{x \to \infty}\left(\frac{4}{\sqrt{x} x}\right) = 0$$
Let's take the limit
so,
inclined coincides with the horizontal asymptote on the left
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:
$$\frac{4}{\sqrt{x}} = \frac{4}{\sqrt{- x}}$$
- No
$$\frac{4}{\sqrt{x}} = - \frac{4}{\sqrt{- x}}$$
- No
so, the function
not is
neither even, nor odd
So, check:
$$\frac{4}{\sqrt{x}} = \frac{4}{\sqrt{- x}}$$
- No
$$\frac{4}{\sqrt{x}} = - \frac{4}{\sqrt{- x}}$$
- No
so, the function
not is
neither even, nor odd
The graph