40 + 2 + 0.5 + 0.06 + 0.004
Answer:

Step-by-step explanation:
From the question we are told that:
Diameter 
Radius 
Igniter distance 
Generally the equation for depth is mathematically given by

Therefore




Part 1
All that’s being affected here is the b value in y=mx+b, so your line will just move up to have a y-intercept at (0,35) the equation will be y=4.5x+35
Part 2
Here the m value is being changed so your line will just flatten out a bit and the new equation will be y=3x+25
Hope this helps!