M=3 (5,15) pleaseeeeeeeeeee help .
2 answers:
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Step-by-step explanation:
y=-4x²
if <em><u>x=0</u></em> x=2
y=0 y=16
<em><u>x=</u></em><em><u>1</u></em> x=-2
y=4×1² <u>y=-16</u>
y=4
<em><u>x</u></em><em><u>=</u></em><em><u>-1</u></em>
y=-4
