Answer:
<em>y= -3</em>
<em>x= 0</em>
Step-by-step explanation:
I will give the explanation in picture, hope you can understand it.
My guess is 30 mins sorry if wrong hope this helps
Answer:
80.66
Step-by-step explanation:


Since we have three variables,



Therefore:

Using the above:
f(4.02, 3.99, 6.97) =81+ 8(4.02 - 4) + 8 (3.99 - 4) +14(6.97-7)=80.66.
The approximation of
is 80.66000.