Given the function f(x)= -2x+7 with a domain of {x|-4< x< 8} (the first < has a line underneath) identity the range using the same notation

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

step-by-step explanation:

-3.5 is the distance.

i've had this question so choose the one in the absolute value sign.