Wait.. I think I know where I did a wrong calculation... are the x-intercept points 1.33 and 1?
In the equation y=3t^2 - 7x + 4
I got the x-intercept points as -8 and -8.33
But then got the turning point co-ordinates as 1.17, -0.08
using the x=-b/2a formula then substituting into the quadratic equation.
This doesn't seem like the correct answer, could someone please let me know what I have done wrong?