Answer:
25/1 OR 1/25
Step-by-step explanation:
Time(days) Cost($)
3 75
4 100
5 125
6 150
Time in days is increasing by 1
cost in $ is increasing by 25
the linear equation connecting the two tables is given thus
OR
using any of the two equations you can get the other variable by substituting one variable
rate of change usually exist between two variables
in this case, variable T (which is time in days) and variable C (which is cost in $)
rate of change of C with respect to T can be gotten by
differentiating the first equation
ΔC/ΔT = dC/dT = 25 (same thing as ) option 1 is correct on that
rate of change of T with respect to C can be gotten by
differentiating the second equation
ΔT/ΔC = dT/dC = option 2 is also correct the other way
In this case we are looking at the rate of change of cost, C, in dollars with respect to Time T in days and vice versa