Let y = (K + 2) x + K be the square of - 9=___ It is a positive proportional function passing through two or four quadrants | Math enthusiast | Mathematical art

Let y = (K + 2) x + K be the square of - 9=___ It is a positive proportional function passing through two or four quadrants

k＝-3
Li Li
y＝kx＋b(b＝0)
Then K & # 178; - 9 = 0
k²＝9
K = plus or minus 3
After two or four limits
K < 0, so + 3 is excluded. Only - 3 holds

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