1.The following sets of ordered-pair numbers which is one-to-one correspondance is... A. {(1,2), (1,3), (1,4), (1,5)}
B. {(1,0), (2,1), (3,2), (4,4)}
C. {(1,0), (6,7), (6,8), (1,3)}
D. {(2,3), (3,3), (4,3), (5,3)}

2.The following sets can correspond one-to-one, except...
A. P = {4,5,6} and Q = {a, i,u}
B. K = {prime factors of 10} and L = {0,1}
C. P = {vowels} and Q = {names of months ended with letter i}
D. M = {r, a,t, u} and N= {x | x < 5, x e Z}

3.Given a function f : x -> 2x - 10.
If f(b) = -14, then the value of b is...
A. -12
B. -2
C. 2
D. 12

4.Given a function f(x) = 2x² - 8. If the grapg if the function passes through B(p, 10), then the value of p is...
A. 4 or -4
B. 2 or -2
C. 3 or -3
D. 6 or -6

5.Given a function f : x -> 6 - 2x² with domain {1,2,3}. The mapping area is...
A. {-12, -4, -2}
B. {-12, -2, 4}
C. {-4, -2, -12}
D. {-12, -4, 2}