Unit 7 REVIEW A Test Review

• x=3 is the only extraneous solution

• Neither x=-4 nor x=3 are extraneous solutions

• x=-4 and x=3 are both extraneous solutions

• x=4 is the only extraneous solution

Groups:

(a) Zero(s)

,

(b) vertical asymptote(s)

,

(c) horizontal asymptote

,

(d) incorrect choices

• x=7 and x=2

• No solution (x=7 and x=2 are both extraneous)

• x=2 (x=-7 is extraneous)

• x=7 (x=-2 is extraneous)

Dave and Elenore work at a retail clothing outlet. After a 4-hour sale, they must refold all of the clothing in the store. Dave can refold all of the clothing in 5 hours. If Elenore helps him, they can complete the job in 3 hours. Which of the following equations would be appropriate to determine how long it would take Elenore to refold all of the clothing in the store?

Match each exponential expression with its equivalent radical expression.

What is the equation that represents the radical function below? Use your knowledge of transformations within radical functions to select the correct equation for the graph.

Groups:

(a) a.

,

(b) b.

,

(c) c.

• No removable discontinuities exist