4y=5x+4
Divid by 4 to make slop intercept form
Y=5/4y +1
Slop =5/4
Answer:
The answer is 10
Step-by-step explanation: You multiply the 2 times twenty to get 40 then multiply the 2 times 2x to get 4x then subtract fourty from both sides and you will get fourty and then divide so 40 divided by 4x equals 10.
So, the function is obviously shifted up by 1 so it rules out A and B, and we also see that the period is 4pi rather than 2pi, and using the fact that:

Now that we know our b value, we see that the correct answer would be C.
Answer:
no
Step-by-step explanation:
14:8 = 14/8 = 7/4
28:10 = 28/10 = 14/5
Since the fractions are not equal, it is not a proportion.
Answer: no