Step-by-step explanation:
x intercept is where you graph cuts the x axis
put this equation equal to 0 and then solve for x
[tex]2x(x - 11) = 0 \\ 2x = 0 \: \: \: \: \: or \: \: \: \: \: x - 11 = 0 \\ x = 0 \: \: \: or \: \: \: \: x = 11[/tex]
so x intercept is (0,0) and (11,0).
To find vertex
x coordinate is -b/2a
[tex]2x(x - 11) \\ 2x {}^{2} - 22x \\ so \: vetex \: is \: - \frac{ - 22}{2(2)} \\ \frac{22}{4} \\ 5.5[/tex]
