m100
posted by keith on .
Sketch the graph of each linear
function. Give the domain and range.
(a) f(x) = 2x + 1
(b)f(x) = 3.

a. F(x) = Y = 2X + 1.
Use the following points for graphing:
(2,5), (0,1), (2,3).
Domain = All real valus of X.
b. F(x) = Y = 3.
Since Y is constant(3),X is varying.
Therefore, we have a hor. line; and Y
equals 3 for all values of X.
(2,3), (0,3), (2,3).
Domain = all values of X.