Can someone please check my work! question: simplify the expression and rationalize the denominator. 16x^4y^8 / 5 if it’s wrong can you please explain step by step and what i did wrong please :) and thank you.

i think the answer is a.( -3, -1 )

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)