What is the value of $ c $ such that the line $ y = 2x + 3 $ is tangent to the parabola $ y = cx^2? $
it's clear. So when you married here. So a line is tension to the prop alot. If that meets a problem only one time, so we see that there's only gonna be one solution. See, X square minus two X minus three is equal to zero. We're gonna make the be equal to zero. So it has one solution is equal to Ciro for plus 12 c this equal to cereal and we gonna see value of negative 1/3.