The tables show the functions to calculate the costs for a master plumber, M(h), and an apprentice, A(h),
depending on the number of hours, h, that it takes to
complete a job.
The total cost for work done by a crew of one master
plumber and one apprentice is the sum of the costs for
each member of the crew.
Which table shows the total cost for various times
orlad
2.75
325
A5

tube or goog would be a great resource to with that question

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:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96