I think its trapezoid
x is the total time in minutes for the free response
you are given number of questions as 15 - m and time per item as 8 minutes
to find x multiply the two givens together:
x = 8 * (15-m) = 8(15-m)
given : the shape of his satellite can be modeled by where x and y are modeled in inches.
now,the given equation is a equation of parabola.
here, coefficient of x is positive, hence the parabola opens rightwards.
on comparing this equation with standard equation , we get
in standard equation, coordinates of focus=(0,m)
thus for given equation coordinates of focus=(0,1.5)