Which function has a domain of (-infinity, infinity) and a range of (-infinity,4]? A. f(x) = -x^2 + 4
B. f(x) = 2^x + 4
C. f(x) = -4x
D. f(x) = x + 4

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42