In some countries, the electricity running to a home oscillates between â€"240 volts to 240 volts, with a frequency of 90 cycles per second. which function represents this scenario? y = 240 sine (startfraction pi x over 180 endfraction) y = 240 sine (startfraction pi x over 90 endfraction) y = 240sin(90Ï€x) y = 240sin(180Ï€x)