I ONLY HAVE 3 MINUTES LEFT HELP! 1.What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?

A) {0,3,5}

B) {0,4,3}

C) {0,4,5}

D) {8,4,3}

2.

What is the domain of the quadratic function given by f(x) = 2x^2 + 2x - 4?

A) [0, +[infinity])

B) all real numbers

C) all negative real numbers

D) all positive real numbers

3.The barber’s profit each week depends on his charge c per haircut. It is modeled by p = -200c^2+ 2400c – 4700. What is the reasonable domain of this function, given this situation?

A) c ≥ 0

B) all real numbers

C) 0 ≤ c ≤ 2.5

D) 2.5 ≤ c ≤ 9.5