Question 794170
The referred image just shows a parabola graph and a three part question, only requiring you to read the graph.  No equation is necessary to find.  The solutions will be taken directly from the graph.  


The questions are that y is various values; find x.


y=0; What is x?
Examine the graph where {{{y=0}}}.  Read the two values for x where the graph crosses the x axis.  These appear to be at {{{x=-1.50}}} and at {{{x=-2.50}}}.


There are two more "questions", and maybe you now have the confidence to find these answers from the graph.