All Algebra 1 Resources
Example Questions
Example Question #3371 : Algebra 1
Solve for , when .
Plug in the value for .
Simplify
Subtract
Example Question #3372 : Algebra 1
For the following equation, if x = 2, what is y?
9
25
16
1
7
9
On the equation, replace x with 2 and then simplify.
Example Question #32 : How To Find F(X)
Solve for when .
Does not exist
Plug 3 in for x:
Simplify:
=
= 5
Example Question #3374 : Algebra 1
What is of the following equation?
To complete an equation with a function, plug the number inside the parentheses into the equation for and solve algebraically.
In this case the
Square the 7 and multiply to get
Add the numbers to get the answer .
Example Question #3375 : Algebra 1
Example Question #3376 : Algebra 1
Example Question #43 : How To Find F(X)
.
Find .
Finding means plugging in in place of x into the function . In this case, we are told that , so we are multiplying by 2 and then adding 17:
order of opperations tells us to first multiply:
and now add:
Example Question #44 : How To Find F(X)
.
Evaluate .
Evaluating means plugging 5 in for x in the function . In this case, we are told that , so that is what we will do to 5 - multiply by 2, then square the product:
order of opperations [PEMDAS] tells us that first we will be doing what is in the parentheses, so we will multiply first:
now we can square 10 for the final answer:
Example Question #45 : How To Find F(X)
.
Find .
Evaluating means plugging in 2 for x in the function . In this case we are told that , so that is what we'll do with 2:
Order of opperations [PEMDAS] tells us to do parentheses first, but no opperations are taking place in parentheses. Next we will do exponents:
The next step in order of opperations is multiplication, so we will next multiply 3 and 4:
finally we will subtract:
Example Question #41 : Algebraic Functions
If is the reciprocal of the following function what is ?
The question is asking for the reciprocal.
The reciprocal can be found by flipping the numerator and the denominator, effectively dividing 1 by the number.
becomes .
*Always remember what the question is asking.
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