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
4. Graph the function:
f(x) = 2x + 1
5. Graph the relation and determine if it is a function. Explain why it is or isn’t.
{(4, -2), (4, -4), (1, 2), (1, 5), (1, -4)}
What do I need help with?