Fill in the Blank with One of the Words or Phrases

Multiple Choice

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 equation y = kx is an example of _______variation.

A) slope
B) inverse
C) direct
D) standard