Answer:
Step-by-step explanation:
Where a graph intersects the x-axis is where the solutions or zeros of the quadratic are found...where y = 0.
If the points of intersection are x = -1 and x = 3, then putting those into factors gives us (x + 1)(x - 3) = 0. FOIL that out to get the quadratic.
[tex]x^2-3x+x-3[/tex] which simplifies to
[tex]x^2-2x-3=y[/tex]
Looks like the third option there.
