17 Questions
What is a function?
A relation where no two distinct ordered pairs have the same first element
In a function, what is the input variable also known as?
Independent variable
Which of the following represents a function? $y = x^2 + 3$
$y = x^2 + 3$
What does the dependent variable represent in a function?
The output variable
Which operation involves multiplying two functions together?
Multiplication of functions
What is a crucial step when looking for a function given x and y values?
Substitute values into the function choices
How do you determine if an ordered pair is part of a function?
By checking if the first element is repeated with a different second element
What should you be cautious of when writing piecewise functions?
Overlapping intervals
What must you remember when solving operations on functions?
Combine like terms
In which scenario should you factor a given function before cancellation?
Before division to cancel out terms
What should you pay attention to when subtracting functions?
The change of signs
How can you quickly narrow down choices when determining if an equation represents a function?
Check if it starts with 'f(x)=' or 'y='
What is the value of 𝑃(30) according to the provided definition?
3300
If 𝑓(𝑥) = 4𝑥 − 3, what is 𝑓(7) equal to?
29
How would you graph the function 𝑔(𝑥) = −2𝑥 + 5?
Straight line
For a function 𝑚(𝑥) = 2𝑥 + 7, what is the value of 𝑚(−3)?
-11
If 𝑘(𝑥) = −3𝑥 + 4, what is the value of 𝑘(0)?
-3
Learn how to evaluate functions by substituting specific values for the variable. Practice evaluating functions with given parameters such as 𝑓(𝑥) = 3𝑥 + 2 at different values of 𝑥.
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