Question

Without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis.

y = –2x2 + x – 3



A.
2 points in common; vertex above x-axis


B.
1 point in common; vertex on x-axis


C.
no points in common; vertex below x-axis


D.
2 points in common; vertex below x-axis

Answer 1

@Nurali

Answer 2

if x = 0 then y = -3; thus, vertex at 0, -3 and it opens upward so each leg crosses the x axis: ANSWER: 2 Common points; vertex below x axis.

Answer 3

give this guy tons of medals