Graph the relation. Is the relation a function? Why or why not? {(-1, 1), (-2, 1), (-2, 2), (0, 2)}

A. No; a domain value has two range values.

B. Yes; there is only one range value for each domain value.

C. Yes; there is only one domain value for each range value.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Which function has the domain x> -11?

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?