Find the value of given expression

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What are the domain and range of the function? f(x) = -4 (sqrt)x

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .