Evaluate Functions - Pre-Calculus
Card 0 of 40
Given
and
, evaluate
.


Given and
, evaluate
.
We are given two functions and asked to find f(h(7)).
I would begin by finding h(7)


Now that we know h(7), we go ahead and plug it into f(x).


So our final answer is simply 8.
We are given two functions and asked to find f(h(7)).
I would begin by finding h(7)
Now that we know h(7), we go ahead and plug it into f(x).
So our final answer is simply 8.
Compare your answer with the correct one above
Solve the function. 
Solve the function.
Determine the domain of
.

Multiply
on both sides of the equation to cancel the denominator and divide the equation
by ten.



Since the domain states that
, the only possible answer is
.
Determine the domain of .
Multiply on both sides of the equation to cancel the denominator and divide the equation
by ten.
Since the domain states that , the only possible answer is
.
Compare your answer with the correct one above
Solve for
: 
Solve for :
Rewrite
so that the exponential variable is isolated.

Reconvert
to a similar base. Use exponents to redefine the terms.

Since all terms are of the same base, use the property of log to eliminate the base on both sides of the equation.

Solve for
.

Rewrite so that the exponential variable is isolated.
Reconvert to a similar base. Use exponents to redefine the terms.
Since all terms are of the same base, use the property of log to eliminate the base on both sides of the equation.
Solve for .
Compare your answer with the correct one above
Determine the value of
of the function

Determine the value of of the function
In order to determine the value of
of the function we set
The value becomes

As such

In order to determine the value of of the function we set
The value becomes
As such
Compare your answer with the correct one above
Evaluate the following function when 

Evaluate the following function when
Evaluate the following function when 

To evaluate this function, simply plug-in 6 for t and simplify:

So our answer is:

Evaluate the following function when
To evaluate this function, simply plug-in 6 for t and simplify:
So our answer is:
Compare your answer with the correct one above
Find the value of the following function when 

Find the value of the following function when
Find the value of the following function when 

To evaluate this function, plug in 2 for x everywhere it arises and simplify:

So our answer must be undefined, because we cannot divide by 
Find the value of the following function when
To evaluate this function, plug in 2 for x everywhere it arises and simplify:
So our answer must be undefined, because we cannot divide by
Compare your answer with the correct one above
Find the value of
when 

Find the value of when
Find the value of
when 

To evaluate this expression, plug in the given value of
everywhere you see a
and simplify:


So our answer is:

Find the value of when
To evaluate this expression, plug in the given value of everywhere you see a
and simplify:
So our answer is:
Compare your answer with the correct one above
Find the difference quotient of the function
.
Find the difference quotient of the function .
Difference quotient equation is
and
.
Now plug in the appropriate terms into the equation and simplify:

Difference quotient equation is
and
.
Now plug in the appropriate terms into the equation and simplify:
Compare your answer with the correct one above
If
, what is
?
If , what is
?
In order to evaluate this function, simply substitute the value of
as a replacement of
.

Simplify using the order of operations.

The answer is: 
In order to evaluate this function, simply substitute the value of as a replacement of
.
Simplify using the order of operations.
The answer is:
Compare your answer with the correct one above
Evaluate
for
.

Evaluate for
.
We evaluate the function when
.

We evaluate the function when .
Compare your answer with the correct one above
Given
and
, evaluate
.


Given and
, evaluate
.
We are given two functions and asked to find f(h(7)).
I would begin by finding h(7)


Now that we know h(7), we go ahead and plug it into f(x).


So our final answer is simply 8.
We are given two functions and asked to find f(h(7)).
I would begin by finding h(7)
Now that we know h(7), we go ahead and plug it into f(x).
So our final answer is simply 8.
Compare your answer with the correct one above
Solve the function. 
Solve the function.
Determine the domain of
.

Multiply
on both sides of the equation to cancel the denominator and divide the equation
by ten.



Since the domain states that
, the only possible answer is
.
Determine the domain of .
Multiply on both sides of the equation to cancel the denominator and divide the equation
by ten.
Since the domain states that , the only possible answer is
.
Compare your answer with the correct one above
Solve for
: 
Solve for :
Rewrite
so that the exponential variable is isolated.

Reconvert
to a similar base. Use exponents to redefine the terms.

Since all terms are of the same base, use the property of log to eliminate the base on both sides of the equation.

Solve for
.

Rewrite so that the exponential variable is isolated.
Reconvert to a similar base. Use exponents to redefine the terms.
Since all terms are of the same base, use the property of log to eliminate the base on both sides of the equation.
Solve for .
Compare your answer with the correct one above
Determine the value of
of the function

Determine the value of of the function
In order to determine the value of
of the function we set
The value becomes

As such

In order to determine the value of of the function we set
The value becomes
As such
Compare your answer with the correct one above
Evaluate the following function when 

Evaluate the following function when
Evaluate the following function when 

To evaluate this function, simply plug-in 6 for t and simplify:

So our answer is:

Evaluate the following function when
To evaluate this function, simply plug-in 6 for t and simplify:
So our answer is:
Compare your answer with the correct one above
Evaluate
for
.

Evaluate for
.
We evaluate the function when
.

We evaluate the function when .
Compare your answer with the correct one above
Find the value of the following function when 

Find the value of the following function when
Find the value of the following function when 

To evaluate this function, plug in 2 for x everywhere it arises and simplify:

So our answer must be undefined, because we cannot divide by 
Find the value of the following function when
To evaluate this function, plug in 2 for x everywhere it arises and simplify:
So our answer must be undefined, because we cannot divide by
Compare your answer with the correct one above
Find the value of
when 

Find the value of when
Find the value of
when 

To evaluate this expression, plug in the given value of
everywhere you see a
and simplify:


So our answer is:

Find the value of when
To evaluate this expression, plug in the given value of everywhere you see a
and simplify:
So our answer is:
Compare your answer with the correct one above
Find the difference quotient of the function
.
Find the difference quotient of the function .
Difference quotient equation is
and
.
Now plug in the appropriate terms into the equation and simplify:

Difference quotient equation is
and
.
Now plug in the appropriate terms into the equation and simplify:
Compare your answer with the correct one above
If
, what is
?
If , what is
?
In order to evaluate this function, simply substitute the value of
as a replacement of
.

Simplify using the order of operations.

The answer is: 
In order to evaluate this function, simply substitute the value of as a replacement of
.
Simplify using the order of operations.
The answer is:
Compare your answer with the correct one above