Question 891945
quadratic equation (this problem has been solved, but I dont know how to make the graph for it)
2/2x + 2/x =1.(2x). (x)
As part of my exercise regiment, I walk 2 miles on an indoor track. Then I jog at twice my walking speed for another 2 miles. If the total time spent walking and jogging is 1 hour,I need to find the walking and jogging rates. 
:
Assume x = your walking speed, and y = total time
y = {{{2/x}}} + {{{2/(2x)}}}
Can be simplified to
y = {{{((4 + 2))/2x}}} = {{{6/2x}}}
reduced to just
y = {{{3/x}}}
you can see that when x=3 mph jogging speed, y = 1 hr
{{{ graph( 300, 200, -1, 5, -2, 10, 3/x) }}}