Defining function notation

12 questions

1. A function is a mathematical relationship that uniquely __________ values of one set to the values of another set.
2. Match the expression to the description of each function.
3. When graphing the linear equation y=7x+9 what is the value of the y coordinate when x=5?
4. When graphing the linear equation y=7x+9 what is the value of the y coordinate when x=-5?
5. When graphing the equation y=10-x^2 what is the value of the y coordinate when x=-3?
6. Which of the below are invalid inputs into the equation 6\over{x^2+x-20}?
7. The __________ of a function is the set of values mapped to by the function and the stated domain.
8. Instead of writing 'the function 5x-8' we would write it using the shorthand notation ...
9. If {\text{f}}(x)=12-5x then {\text{f}}(3)=___.
10. If {\text{f}}(x)=12-5x evaluate {\text{f}}(-2).
11. If {\text{f}}(x)=5x+12 evaluate 7{\text{f}}(4) ___
12. If {\text{f}}(x)=5x+12 and {\text{g}}(x)=2-3x evaluate {\text{f}}(4)-{\text{g}}(3) ___

License: OGL