Algebra 1 : How to find f(x)

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #3401 : Algebra 1

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

Given a function 

,

we can plug in  to get

.

Example Question #71 : Algebraic Functions

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

Given a function 

,

we can plug in  to get

.

Example Question #73 : How To Find F(X)

Solve for .

Possible Answers:

Correct answer:

Explanation:

 In order to solve for  in the above equation, we must isolate it on one side of the equation. We can do this by applying an operation to  that is the inverse (opposite) of what's currently being applied to .

Given , we see that  is being subtracted from , so we need to add  to both sides of the equation to isolate :

Example Question #71 : Algebraic Functions

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

Given a function 

,

we can plug in  to get

.

Example Question #72 : Algebraic Functions

Given a function , what is ?

 

Possible Answers:

Correct answer:

Explanation:

 Given a function

,

we can plug in  to get

.

 

Example Question #73 : Algebraic Functions

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

Given a function 

,

we can plug in  to get

.

Example Question #74 : How To Find F(X)

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

 Given a function

,

we can plug in  to get

.

Example Question #75 : How To Find F(X)

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

Given a function 

,

we can plug in  to get

.

Example Question #127 : Functions And Lines

Given a function , what is ?

Possible Answers:

Correct answer:

Explanation:

Given a function 

,

we can plug in  to get

Example Question #76 : How To Find F(X)

Given the function , what is ?

Possible Answers:

Correct answer:

Explanation:

Start by replacing the number with the  term in the function.

Simplify by distributing the four with the two in the numerator.

Convert  to  and replace so that fractions with like denominators can be added.

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