Class VI If each ticket of amusement park is sold for $20 then function for total sales can be written as y = 20 + x 20xy x = 20y y = 20x . By putting value for x as 3 in function y = 10x, answer will be 3.334 7 30 13 On Cartesian plane, x-axis is also known as horizontal axis vertical axis point coordinate function coordinate Plane which consists of two number lines that intersect each other at right angle is called functional plane Cartesian plane ordinate plane dimensional plane By putting value for x as -4 in function y = 5x, answer will be 1 −20 20 −1 Do you really want to submit this quiz? Cancel Submit Quiz