Questions: What are 3 different ways you can refer to the y-variable?
Transcript text: What are 3 different ways you can refer to the $y$-variable?
Solution
Solution Steps
To refer to the $y$-variable, we can use different terminologies or contexts in mathematics and programming. Here are three different ways:
Dependent Variable: In the context of functions, $y$ is often referred to as the dependent variable because its value depends on the value of the independent variable, usually denoted as $x$.
Output: In the context of functions, $y$ can be referred to as the output of the function.
Ordinate: In the context of coordinate geometry, $y$ is referred to as the ordinate, which is the second coordinate in an ordered pair (x, y).
Step 1: Define the Function
We start by defining the function \( y = 2x + 3 \). This function will be used to calculate the value of \( y \) for a given \( x \).
Step 2: Calculate the Dependent Variable
For \( x = 5 \), we substitute \( x \) into the function:
\[
y = 2(5) + 3 = 10 + 3 = 13
\]
Thus, the dependent variable \( y \) is 13.
Step 3: Calculate the Function Output
Using the same function \( y = 2x + 3 \) and substituting \( x = 5 \), we get:
\[
y = 2(5) + 3 = 10 + 3 = 13
\]
Thus, the function output \( y \) is 13.
Step 4: Calculate the Ordinate
Again, using the function \( y = 2x + 3 \) and substituting \( x = 5 \), we find:
\[
y = 2(5) + 3 = 10 + 3 = 13
\]
Thus, the ordinate \( y \) is 13.