1 If x and y are defined as indicated by the accompanying table, which equation correctly represents the relationship between x and y?

(1) y = x + 2          (3) y = 2x + 3
(2) y = 2x + 2        (4) y = 2x 3

1         2         3         4        

1         2         3         4        

1         2         3         4        

4 Frank, George, and Hernando are a plumber, a cabinet maker, and an electrician, though not necessarily in that order. Each can do all work appropriate to his own field, but no work in other
fields. Frank was not able to install a new electric line in his home. Hernando was not able to make cabinets. George is also a building contractor who hired one of the other people to do his  electrical work. Which statement must be true?

(1) Hernando is an electrician.
(2) George is a cabinet maker.
(3) Frank is a plumber.
(4) Frank is an electrician.

1         2         3         4        

5 What is the solution set of the equation 3x2 = 48?

(1) {2,8}          (3) {4,4}
(2) {2,8}              (4) {4,4}

1         2         3         4