Question 295750
its a quadratic equation set y=0 and solve for x.
find 2 numbers that multiply to get -4 and add to get +3
-1 and +4
so {{{0=(x-1)(x+4)}}}
{{{x=1}}}{{{x=-4}}} these are the 2 intercepts
if you cant remember this method then use the quadratic method like the solver below
*[invoke quadratic "x", 1, 3, -4]