Safety Workshops. Back to top. For more than 30 years, DuPont has been helping clients protect their people, facilities and operations by implementing processes and systems that enable sustainable cultural improvements, developed through 200 years of DuPont safety and operational experience.ack to top. For more than 30 years, DuPont has been helping clients protect their people, facilities and operations by implementing processes and systems that enable sustainable cultural improvements, developed through 200 years of DuPont safety and operational experience.
Apr 17, 2015. To graph the direct variation #y=5/2x#, determine two points on the line. If #x=0, y=(5/2*0)=0# Point = #(0,0)#. If #x=2, y=(5/cancel 2*cancel 2/1)=5# Point = #(2,5)#. Plot the two points and draw a straight line through the points. graph{y=5/2x [-7.605, 12.395, -3.345, 6.655]}r.
The range is #y>=0#. Normally, you would complete the square and check the leading coefficient, #a#, to determine the concavity for the comparison sign. However, this function is already in vertex or standard form: #y=(x-0)^2+0#. So the vertex is #(0,0)# and the leading coefficient is positive; this means the parabola is concave up and the vertex has the minimum value. The minimum value is the bottom of the range of the function.