elisakate8362
04.07.2019 •
Mathematics
Intercept form: y=2(x+3)(x-5) standard form? vertex form?
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Ответ:
I'm not sure but,
Intercept Form to Standard:
y=2(x+3)(x-5)
y=[x^2-5x+3x-15]
y=[x^2-2x-15]
y=2x^2-4x-30
Standard Form to Vertex:
y=2x^2-4x-30
y=2(x^2-4)-30
y=(x^2-4x+4x)-30-4(-2)
y=2(x-2)^2-22
PS: Im clearly not sure about my answer...
Ответ:
t = 120[6/4] = 180 ft (tower's height)