3. Evaluate the function when x=3, x=0, x=-2
a. f(x) = x
b. g(x)= 4x-1
c. f(x) =1/3x+2/3
a. Evaluating f(x) = x when x=3, x=0, x=-2:
f(3) = 3
f(0) = 0
f(-2) = -2
b. Evaluating g(x)= 4x-1 when x=3, x=0, x=-2:
g(3) = 4(3) - 1 = 12 - 1 = 11
g(0) = 4(0) - 1 = 0 - 1 = -1
g(-2) = 4(-2) - 1 = -8 - 1 = -9
c. Evaluating f(x) = (1/3)x + (2/3) when x=3, x=0, x=-2:
f(3) = (1/3)(3) + (2/3) = 1 + (2/3) = 1 2/3
f(0) = (1/3)(0) + (2/3) = 0 + (2/3) = 2/3
f(-2) = (1/3)(-2) + (2/3) = -2/3 + 2/3 = 0