Finding the Y-Intercept of a Parabola | Quadratics Series Ep.2

This video is the second video in my Quadratic Series and shows how you can find the y-intercept of any quadratic (or parabola) algebraically, easily! First we look at how finding the y-intercept is similar and different from find x-intercepts like we did in episode 1! Use the time stamps below if you'd like to skip to a specific example.
Timestamps
1:16 - y=x^2-2x+15
3:35 - y=(x+7)^2
4:05 - y=x(x+4)
4:24 - f(x)=-5x^2+13x-8
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