Dy/dx = (dy/dt) / (dx/dt)
dy/dt = 2bt
dx/dt = 3at^2
therefore dy/dx = 2bt/3at^2
dy/dx = 2b/3at
Make them into improper fractions
(5*5)+3
(2*3)+2
Final fractions
28/5+8/3
Find a common denominator
Multiply 28/5 by 3
84/15
Multiply 8/3 by 5
40/15
Add - 84+40=124
B .....................................................
