Asked by Elle


x -4 -3 -2 -1 0 1 2 3 4
y 18 8 0 -6 -10 -12 -12 -10 -6

What is the vertex of the parabola? The x-coordinate is 1.5.
Answered by bobpursley
I can't read you numbers, but the y vertex is between the two -12 -12, probably half way. If that occurs when x=1.5, correct.
Answered by Elle
The numbers are

x -4 -3 -2 -1 0 1 2 3 4
y 18 8 0 -6 -10 -12 -12 -10 -6