What is the common term for the set of all points with x- coordinate zero?
a. x axis
b. y axis
c. coordinate plane
d. origin

I think the correct answer would be option B. The common term for the set of all points with the x-coordinate that is zero is the y-axis. All of the points that is found in the y-axis contains zero as the x-coordinate of the point. So, it should be the y-axis the correct answer.

Sis less than or equal to 75 (bottom left)