1 Jaw pain and Nausea and Abdominal symptoms (5 causes) 2  Jaw pain and Nausea and Digestive symptoms (5 causes) 3  Jaw pain and Nausea and Face symptoms (5 causes)  Jaw pain and Nausea and Head symptoms (5 causes)
Definition of X-Axis. The coordinate plane is formed by the intersection of two number lines, a horizontal number line and a vertical number line. The horizontal number line is called the x-axis.
Here's a graph of that function as a final illustration that this is correct: (Notice that there's also a vertical asymptote present in this function.). If the exponent in the denominator of the function is larger than the exponent in the numerator, the horizontal asymptote will be y=0, which is the x-axis.