Question 1183277
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 y=-35x^2 + 1250x - 6500 where,x,represents the price of each T-shirt.
a) Determine the roots of the equation
b) Determine the vertex of the parabola.
c) Draw a sketch of the relationship. Label the axes and the vertex
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{{{system(a=-35,b=1250,c=-6500)}}}


{{{y=ax^2+bx+c}}}
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{{{y=a(x+b/2a)^2+c-b^2/4a}}}


vertex  (-b/2a,c-b^2/(4a))

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