Charlie uses the function f(x) = 2x2 + 5x + 3 to track the temperature of a substance, where x represents the time. When you evaluate f(5) you find that the temperature of the substance is 78°C. What is the domain of the situation of Charlie's quadratic function?

A) All real numbers
B) All real numbers less than zero
C) All real numbers greater than zero
D) All real integers less than or equal to zero

Question

Charlie uses the function f(x) = 2x2 + 5x + 3 to track the temperature of a substance, where x represents the time. When you evaluate f(5) you find that the temperature of the substance is 78°C. What is the domain of the situation of Charlie's quadratic function? 

A) All real numbers
B) All real numbers less than zero
C) All real numbers greater than zero
D) All real integers less than or equal to zero

sidsiddhartha · Answer

The domain is all real numbers greater than or equal to 0
because u cannot have negetive trems

anonymous · Answer

Thanks man :)

sidsiddhartha · Answer

^_^ welcome

anonymous · Answer

Do you think you can help me with something else?