What is the domain of the quadratic function given by f(x) = 2x2 + 2x - 4? A) [0, +∞)
B) all real numbers
C) all negative real numbers
D) all positive real numbers

B) all real numbers.

Step-by-step explanation:

From Algebra we know that polynomials, including the quadratic function presented on statement, are continuous in every part of real number set, which means the existence of images for every element of domain. Hence, the domain of the quadratic function is all real numbers. ( B)

yes

yes yes yes

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50