8. Reasoning A certain function fits the following description: As the value of x increases by 1 each time, the value of y decreases by the square of x. Is this function linear or nonlinear? Explain your reasoning,

246

step-by-step explanation:

x coordinate is none

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

i think its a.

hope this