What is the equation for Graph B? Use C for hours in class and S for hours studying. Use * to indicate multiplication ?
- PuzzlingLv 71 month ago
We can see that there is a direct relationship between the two.
The both start at zero. Then as the number of hours in class (C) increases, the number of hours studying (S) increases in a linear fashion.
That means the S is some constant multiplier of C.
S = kC
But what is that multiplier?
Looking at the chart,
when C = 2, S = 1
when C = 4, S = 2
when C = 6, S = 3
when C = 8, S = 4
when C = 10, S = 5
It's pretty obvious that the time studying is exactly half of the time in class.
S = ½C