Please help, im so confused!

Which point is on the graph of the function

f(x) = One-half(2)x?

(0, 1)
(0, 2)
(1, One-half)
(1, 1)

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain