WILL GIVE BRAINLIEST
plsss help

2÷6+1/2 to the second power plus one

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

What is the ratio of the change in y-values to the change in x-values for this function? a) 1: 13 b) 2: 5 c) 5: 2 d) 13: 1