Substitute some arbitrary values for x to find their corresponding y-values.
Practice makes perfect
One way to graph a function rule is by making a table of values and substituting some arbitrary values for x. Doing so will give the corresponding values of y, which we can use to form ( x, y) coordinate pairs.
By connecting all of our points, we form the graph of the function rule. Because there is a variable with an exponent in the function, our line will not be straight. Later, we will learn that this type of function is called a quadratic function, and this type of graph is called a parabola.
