d=vt+1/2at^2

Question

Students are using the following formula in their high school physics class. They want to rearrange the formula so that 'a' is solved for. What would they get?

Algebra honors 

9th Grade

Answer 1

d = vt + 1/2at²               Given

d - vt = 1/2at²                Subtract vt from each side

2(d - vt) = at²                Multiply each side by 2

2(d - vt)/t² = a               Divide each side by t²

a = 2(d - vt)/t²               Symmetric Property