Question

The range of the function given below is the set of all positive real numbers greater than 5.

F(x) = 5 + 4x


A. True

B. False

Answer 1

the answer is true

Explanation:

I took the test

Answer 2

B. False. The range is the set of ALL real numbers.

Explanation:

That is false because we can substitute values of x which will give negative real numbers to give negative values of the function.

x = -10 : f(x) = 5 - 40 = -35.

The actual range is the set of all real numbers.