Question

find x-int, y-int and vertex of parabola y=x^2-4x-12

Answer 1

x int would be the roots- can be determined by setting y=0

y int can be found by setting x=0

Answer 2

to determine vertex, you can either take the first derivative
set it equal to zero
solve for x
then plug back in to find y

or you can use x=-b/2a to determine x value of vertex
then plug back in to find y

combine x and y to get the vertex point