Given a quadratic function, y=x2+bx+c what happens to the graph when "a" is positive? A.the parabola opens down, the vertex is t
he C. the parabola opens up, the vertex is the maximum value maximum value B. the parabola opens down, the vertex is the D. the parabola opens up, the vertex is the minimum value minimum value
Let the width of the rectangle be x Then length =x-4 Area=x(x-4)=140 x²-4x=140 x²-4x-140=0 x²-14x+10x-140=0 x(x-14)+10(x-14)=0 (x-14)(x+10)=0 Therefore,length=14 cm and width=10 cm