consider function f
{ 2ˣ, x<0
f(x) = { -x² – 4x + 1, 0 { 1/2 x + 3, x>2
which statement is true about function f?
a. the domain is all real numbers.
b. the function is increasing over its entire domain.
c. the function is continuous.
d. as x approaches positive infinity, approaches positive infinity.