Domain are all the possible x values of a function. When you look at a cosine graph you can see that it goes on into infinity in the x or horizontal direction. This means that all x values are included in cosine. Because of this the domain is:
all real numbers
or
(-∞,∞)
^^^ It can be written both ways
Hope this helped! Let me know if there is anything else I can do!
Answer:
the second one........the shape of the conic section os circle
The answer is a cause I’m smart
Answer:
C - graph D
Step-by-step explanation:
when plotting this line we can look at the slope and the y intercept
2 is the slope so it goes up 2 over 1
and the y intercept is 3 so the line meets the y axis at (0, 3)
the graph that shows this is D