Answer:
4..............21...........
KEYS is a square
Showing as plotted and connected points
See the attached
It would be the first answer.
Step-by-step explanation:
y=-2x^2+4x-2
y=-2(-1)^2+4(-1)-2
y=-2(1)-4-2
y=-2-4-2
y=-6-2
y=-8
(-1,-8)
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Let the number be x
Explanation:
