Answer:
2
Step-by-step explanation:
Answer:
By translating the function cos(x) 90 degrees to the right.
Step-by-step explanation:
The sine function is just the cosine function translated 90 degrees to the right. You can see the visualization below. They overlap.
If you're wondering why the diagram shows a shift in

That's just the equivalent to 90 degrees in radians.
Just use app called Socratic will help out
Answer:
Step-by-step explanation:
The slopes of parallel lines are equivalent, so you are correct.
170 divided by 80 is 2.125, so 80 goes in 170, 2.125 times