For the following choose the most appropriate answer. Suppos…

For the following choose the most appropriate answer. Suppose you build a campfire.  The heat measure is F when you start the fire.  Let   be the temperature in degrees Fahrenheit x feet from the fire t minutes after you start it.  The figure shows the contour diagram for H, with contours at H = 45, 55, 65 and 75 degrees.  1)  True or False:  From the contour diagram we can estimate