The parabola $y=18x^2 - 48x - 77$ has two $x$-intercepts. The line symmetry of the graph is $x =k$. Solve for $k$.
y = 18x^2 -48x - 77
The line of symmetry is given by :
x = -(-48) / (2 (18) ) = 48 /36 = 4 / 3
Nice, Chris!~!
