Polynomial practice help!!!

Question

The polynomial function y = 3x (x² + 2x - 6) has y-intercept with coordinates (0,y).

How can i find the value of y ?

Answer 1

To find the y-intercept, you can plug in the value of x=0 to the original equation. When you plug in x=0 to the first term, 3x, you get 0 (3*0 = 0). Since the first term is multiplied by everything else, your answer will equal 0 (0 times any other term = 0). Therefore, the y value you got from plugging x=0 is 0, and the y-intercept is (0, 0). I hope this was helpful!