1. Which of the following correspondence is a function ?
i. one-to-one
ii. one-to-many
ili, many-to-one
a. i only b. ii only
c. ii and iii d. i and i
_2. Which of the following tests is used to determine if the graph of a relation is a function?
a, vertical line test b. function test
c. relation test
d. horizontal line test
3. Which of the following is a not function?
a.
b.
C.
4. What is the domain of the function defined by the set of ordered pairs?
{(0, 1), (-2,4), (2,5), (-3,6), (1,7), (-4,-2)}
a. (-2, 1,4,5,6} 6.{-4,-3,-2,0,1} c. {-2, 1,4,5,6,7} d. {-4,-3,-2,0,1,2}
5. Which of the following rule is a function?
b. x+y=10
b. x+y=5 c. x++y*=0 d. x-y*= 18