HELP PLEASEEE EMERGENCY

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

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.