HELP PLEASE Identify the coordinates of the midpoint of PQ with endpoints P (1, -1) and Q (7,-3).
O (-2,4)
O (4,-2)
O (8,-4)
O (-4,8)

(4,-2)

Step-by-step explanation: use the midpoint formula which is. (x1+x2/2 , y1+y2/2) then blug in the points

1+7/2 , -1 +(-3)/2 so it would be (4, -2)

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step-by-step explanation:

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)

step-by-step explanation: