ah i just realised, i should have made it + 8c rather than - 8c
hi, i've got the question-
find the range of values of the constant c for which the line does not intersect the parabola with equation
i know you have to have a discriminant thats less than 0 for this so i strted by putting the equation into one like this so then used the theory : which came to which then became then i made it leaving .
the answer the book gives me is
can some explain this please? thanks