Question 630483
If {{{a}}}, {{{b}}}, and {{{c}}} are just ordinary numbers,
and {{{ x }}} and {{{ y }}} are unknowns,
{{{ y = a*x^2 + b*x + c }}} is the general equation
for the parabola.
Suppose that
{{{ a = 2 }}}
{{{ b = 3 }}}
{{{ c = 4 }}}, then you have
{{{ y = 2x^2 + 3x + 4 }}}
Here is the plot of this parabola:
{{{ graph( 400, 400, -5, 5, -3, 16, 2x^2 + 3x + 4 ) }}}