What is the range of the function, f(x)=√(2x-4)

I am assuming that the 2x - 4 expression is under the square root sign, f(x) = √(2x - 4). The domain of this function is [2, ∞), since the square root of a negative number is not a real number. The range of f(x) is range is [0, ∞). This the is key to identifying the domain of the inverse function.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204