Can a demand curve be drawn without knowing the supply?

Pls an ice cream shop sells 5 times as many cake cones as waffle cones use variable x to represent the number of waffle the ice cream shop sells and use this variable to write an expression for the number of cake cones the ice cream shop sells. enter the expression for the number of cake cones the ice cream shop sells

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Math it's appreciated. (picture provided)