**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* = 2*x* + 3

(2) y = 2*x* + 2 (4) *y* = 2*x*
– 3

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**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.

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**5** What is the solution set of the equation 3*x*^{2} = 48?

(1) {–2,–8} (3) {4,–4}

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

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