f(x) = 5x - 7 | f is a linear function of x |
g(t) = .7t - 5 | g is a linear function of t |
h(s) = -5s + 2 | h is a linear function of s |
w(x) = 7 | w is a linear function of x
called a constant function |
Time in minutes
t |
Cost in cents
C(t) |
0 < t < 1 | 20 |
1 < t < 2 | 30 |
2 < t < 3 | 40 |
3 < t < 4 | 50 |