Problem 113

Question

What is the graph of a function?

Step-by-Step Solution

Verified
Answer
The graph of a function represents all the ordered pairs that comprise a function. It is drawn by plotting all pairs (x, y) satisfying the function equation on a cartesian grid and then joining these points to form a curve or line.
1Step 1: Definition
A function is a relationship between two sets of numbers (usually called the domain and the range) that assigns to each member of the domain exactly one member of the range. The graph of a function f is the set of points in the plane whose coordinates (x, y) satisfy the equation y=f(x). This means each x-value is paired with exactly one y-value.
2Step 2: Graphing a Function
To graph a function, start by choosing a number for x, then calculate the corresponding value of y using the provided function. Repeat this process for various x-values and then plot these points (x, y) on a cartesian grid.
3Step 3: Visual Representation of the Function
After plotting all the points, they can be joined to form a continuous curve or line. The resulting graph represents all possible pairs of (x, y) that satisfy the function equation.