The value of a cell phone changes exponentially after initiall release. The
graph below shows the decrease in value
of the phone over time.
1,000
(0,840)
800
(1,630)
600
value (dollars)
(2,472.5)
(3,354.38)
400
200
2
4.
6
8

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)