gambarlah grafik fungsi f(x) = x² + 2x -3

titik belok= (-1,-4)
titik potong= x1 (-3,0) x2 (1,0) y(0,-3)

-titik potong x (y=0)
0=(x+3)(x-1)
x1 (-3,0) x2 (1,0)

-titik potong y (x=0)
y= 0^2+2.0-3
y=(0,-3)

-titik belok x
xb= -B/2A
=-2/2.1
=-1
-titik belok y
y= x² + 2x -3
= - 1^2 + 2(-1)-3
=1-2-3
=-4

semoga membantuuu