Fill in the Blank with One of the Words or Phrases

Fill in the blank with one of the words or phrases listed below. $\begin{array} { l l l l l l } \text { y-axis } & \text { x-axis } & \text { solution } & \text { linear } & \text { standard } & \text { point-slope } \\\text { x-intercept } & y \text {-intercept } & y & x & \text { slope } & \text { relation } \\\text { domain } & \text { range } & \text { direct } & \text { inverse } & \text { slope-intercept } & \text { function }\end{array}$
-The horizontal number line in the rectangular coordinate system is called the_______ .

A) y-intercept
B) x-intercept
C) x-axis
D) y-axis