If it is perpendicular to the axis, then a circle. If it is at an angle, then an ellipse. If it is parallel to the axis, then two parallel lines. These aren't mine but I hope they help you
Step-by-step explanation: The difference between the 2nd And 4th is 7. Divide by 2 to get 3.5. Add 3.5 to f(2) to getf(3) The difference between f(1) and f(2) will be 3.5 and that's 5-3.5 =1.5 F(5) is 15.5 f(6) is 19
