Which choice shows the coordinates of B’ if the trapezoid is reflected across the x-axis? (–7, 2) (2, –7) (7, –2) (–2, 7)

For this case we have that the original point is given by:

 B = (7, 2)

 As the point is reflected through the x axis, then we have the following transformation:

 (x, y) > (x, -y) > (x ', y')

 Applying the transformation to the original ordered pair we have:

 (7, 2) > (7, - (2)) > (7, -2)

 Point B 'is given by:

 B '= (7, -2)

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y=mx+

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: