Aformula is expressed as d=a(2+kt). express k in terms of d, a and t

Find and classify the slope of the line through each pair of points. (2,,-16)

Which of the following points is collinear with (-2,1) and (0,3)

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.