To solve this we are going to use the unitary circle and the fact that

From our circle we can infer that

and

.
Since

,

We can conclude that 
.
When you have a polynomial function, and you need to graph it, you need to find- y intercept (the constant at the end) zeroes( factor equation and set factorsequal to zero) end behavior( if the highest exponent is even, then if the leading coefficient is positive both sides continue up, if the leading coefficient is negative both sides continue down. If the highest exponent is odd, then if the leading coefficient is positive left side continues down, right side continues up, if the leading coefficient is negative then visa versa.) and multiplicity( if the same factor occurs multiple times- if it occurs an odd number of times, then the graph passes the x axis, if it occurs an even number, then it merely touches).
Hope I helped!
we are given with two numbers: 8 and 0.25. In this case, we are asked in the problem to determine the set in which the numbers belong to. 8 belongs to whole numbers and integers, as well as natural numbers. 0.25 belongs to decimal numbers and whole numbers
Answer:
x is greater than 7, so x can be 8 or more.