Why did I use 0? Remember the y-intercept is where the line crosses the y axis so this means the x value of the y intercept is always = 0. Also, not, to find the y-intercept, you could of just multiplied the 6 and 2 in the factored form to get the 12 and since you know that the x is always 0 at the y-intercept, you know that the y-intercept is at (0,12)
Option 2 Input 0 for x in f(x) = (x-6)(x-2) f(x) = (x-6)(x-2) f(0) = (0 - 6)(0 - 2) f(0) = (6)(2) =Β 12 x = 0 f(0) = y = 12 y-intercept = (0,12)