1/ My four integers are: 4,3,1,9 2/ Let's construct a third-degree function f(x): Since my first three values represent the zeros (opposite sign of the x-intercept), my x-intercepts are at x = -4, -3, -1 Then f(x) = k(x+4) (x+3) (x+1) We have a y-intercept of 9, so f(0) = 9 Let's find k f(0) = k(4)(3)(1) = 9 12k = 9 so k = Therefore f(x) = (x+4) (x+3) (x+1) 3/ Let's state f(x): f(x) = 34????3+6????2+574????+9 4/ See graph below: 5/ Let's solve f(x)