quick computing company produces calculators they have found that the cost c(x) of making x calculators is a quadratic function in terms of x. The company also discovered that it costs $45.00 to produce two calculators $143 to produce four calculators $143 to produce four calculators and $869 to produce ten calculators. Find the cost of producing seven calculators
Stacey Warren - Expert brainly.com
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Hey old school mate! I know you
You look familiar
lol that was a prank to get you started with a bit of funXD
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lol you look like a guy in my class
In question like this you need to start organizing the known values and keys that can lead to finding the final answer.
First you know that this is a quadratic equation we all know to be old school nostalgia
Ok since now that you know this is a quadratic function you find the coordinates to find in with other coordinates in the form of quadratic equation which has parabola and vertex just like your teacher's lesson
you need to assume that this is a quadratic equation and that all of the coordinates described conform with the shape of that parabola old school
You can either use your calculator to do it, just assign it to quadratic equation and enter the coordinates given. Or you can draw it on a cartesian plane to get the approximate amount.
Or you can go about calculating it by hand which would take a bit of trick ;) Let me know how it goes.
math stands for mental abuse to humans;) and you are the participant;)
I have no clue how to do what you described above
Ok. Which part? I don't understand.
any of it
c(x) = ax^2 + bx + c general form of a quadratic function
from the data
45 = a(2)^2 + 2b + c
143 = a(4)^2+ 4b + c
869 = a(10^2 + 10b + c
from this we can find values of a , b and c
then plug in x = 7
so the system of equations is
4a + 2b + c = 45
16a + 4b + c = 143
100a + 10b + c = 869
looks a bit scary but they can be solved
if you subtract the first one from the second
then 2nd from the third you will eliminate the c and get 2 equations in a and b
12a + 2b = 98
84a + 6b = 726
now multiply first equation by -3 and add
-36a - 6b = -294
84a + 6b = 726 adding:-
48a = 432
a = 432/48 = 9
a = 9