The equation y= 20x+100 represents the membership at a local gym where y represents the total number of members and x represents the number for weeks the gym has been open. What does the
y-intercept represent in this equation?

(A). the gym gets 100 new members per week.
(B). The gym gets 20 new members per week.
(C). The gym sold 20 memberships prior to opening.
(D). The gym sold 100 membership prior to opening.