Podcast
Questions and Answers
What is a function?
What is a function?
- A relation where the output determines the input
- A relation where the input and output are the same
- A relation where no two distinct ordered pairs have the same first element (correct)
- A relation where each input has multiple outputs
In a function, what is the input variable also known as?
In a function, what is the input variable also known as?
- Control variable
- Output variable
- Independent variable (correct)
- Dependent variable
Which of the following represents a function? $y = x^2 + 3$
Which of the following represents a function? $y = x^2 + 3$
- $y = 3x$
- $x^2 + y = 3$
- $y = x^2 + 3$ (correct)
- $x = y^2 + 3$
What does the dependent variable represent in a function?
What does the dependent variable represent in a function?
Which operation involves multiplying two functions together?
Which operation involves multiplying two functions together?
What is a crucial step when looking for a function given x and y values?
What is a crucial step when looking for a function given x and y values?
How do you determine if an ordered pair is part of a function?
How do you determine if an ordered pair is part of a function?
What should you be cautious of when writing piecewise functions?
What should you be cautious of when writing piecewise functions?
What must you remember when solving operations on functions?
What must you remember when solving operations on functions?
In which scenario should you factor a given function before cancellation?
In which scenario should you factor a given function before cancellation?
What should you pay attention to when subtracting functions?
What should you pay attention to when subtracting functions?
How can you quickly narrow down choices when determining if an equation represents a function?
How can you quickly narrow down choices when determining if an equation represents a function?
What is the value of 𝑃(30) according to the provided definition?
What is the value of 𝑃(30) according to the provided definition?
If 𝑓(𝑥) = 4𝑥 − 3, what is 𝑓(7) equal to?
If 𝑓(𝑥) = 4𝑥 − 3, what is 𝑓(7) equal to?
How would you graph the function 𝑔(𝑥) = −2𝑥 + 5?
How would you graph the function 𝑔(𝑥) = −2𝑥 + 5?
For a function 𝑚(𝑥) = 2𝑥 + 7, what is the value of 𝑚(−3)?
For a function 𝑚(𝑥) = 2𝑥 + 7, what is the value of 𝑚(−3)?
If 𝑘(𝑥) = −3𝑥 + 4, what is the value of 𝑘(0)?
If 𝑘(𝑥) = −3𝑥 + 4, what is the value of 𝑘(0)?
