ممكن حل في 1.1
السؤال :
Find an expression for the function whose graph is the line segment joining the points (
1,
-5) and (
5,
5). (Assume that these points are in the form (
x,
f(
x)).)
f(
x) =
1
, 2
x 
3
Find an expression for the function whose graph is the top half of the circle
x2 + (
y -
4)2 =
9.
y =
1
1