Fran graphs the equations y= 7/4 x subscript 2 -2 and y = -0.5x = 4 which value is a solution of 7/4 x subscript 2 -2= -0.5x +4

choices

x=-2

x=-1

x=1

x=5

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The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?