Izzy's heartbeat rate was measured on an EKG machine. After conversion, the function produced could be modeled by a sine function, and the wave produced a maximum of 8, minimum of −2, and period of π. Which of the following functions could represent Izzy's EKG read-out? 1) f(x) = 8 sin πx − 2
2) f(x) = 5 sin πx + 3
3) f(x) = 5 sin 2x + 3
4) f(x) = 2 sin 2x + π