document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=312775>Question 312775</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which of the following relations is NOT a function? (2.0 points)<BR>\n" );
document.write( "A) an ascending line<BR>\n" );
document.write( "B) a descending line<BR>\n" );
document.write( "C) a horizontal line<BR>\n" );
document.write( "D) a vertical line<BR>\n" );
document.write( "2.<BR>\n" );
document.write( "An example of a joint variation, with y as the dependent variable would be __?__ (2.0 points)<BR>\n" );
document.write( "A) y= 2xz<BR>\n" );
document.write( "B) xy = 2<BR>\n" );
document.write( "C) x/y = 2<BR>\n" );
document.write( "D) square root of x/y = 2<BR>\n" );
document.write( "3.<BR>\n" );
document.write( "Which of the following is NOT an example of an Irrational Number? (2.0 points)<BR>\n" );
document.write( "A) 4.2<BR>\n" );
document.write( "B) square root of 5<BR>\n" );
document.write( "C) 5.212573...<BR>\n" );
document.write( "D) pi<BR>\n" );
document.write( "4.<BR>\n" );
document.write( "The name of an algebraic property and an example are given. Which one is incorrect? (2.0 points)<BR>\n" );
document.write( "A) Distributive Property -> 4(x+3)=4x+12<BR>\n" );
document.write( "B) Associative Property of Addition -> 4+(2+3)=(2+3)+4<BR>\n" );
document.write( "C) Inverse Property of Addition -> 4+(-4)=0<BR>\n" );
document.write( "D) Commutative Property of Addition -> 4+(2+3)=4+(3+2)<BR>\n" );
document.write( "5.<BR>\n" );
document.write( "When solving an equation like 2x+10=2(x+5), and, when simplified, you get x=x, 10=10, or 0=0, what is the solution for x? (2.0 points)<BR>\n" );
document.write( "A) no solution<BR>\n" );
document.write( "B) x=any real number<BR>\n" );
document.write( "C) x=10<BR>\n" );
document.write( "D) x=0<BR>\n" );
document.write( "6.<BR>\n" );
document.write( "Which of the following would be the inequality which expresses this graph?<BR>\n" );
document.write( "(2.0 points)<BR>\n" );
document.write( "A) x<5<BR>\n" );
document.write( "B) x>5<BR>\n" );
document.write( "C) x<=5<BR>\n" );
document.write( "D) x>=5<BR>\n" );
document.write( "7.<BR>\n" );
document.write( "Which of the following inequalities is expressed by this graph?<BR>\n" );
document.write( "(2.0 points)<BR>\n" );
document.write( "A) -2 < x < 4<BR>\n" );
document.write( "B) -2 <= x <= 4<BR>\n" );
document.write( "C) -2 > x > 4<BR>\n" );
document.write( "D) -2 >= x >= 4<BR>\n" );
document.write( "8.<BR>\n" );
document.write( "When solving for \"a\" in the equation , what mathematical operation is performed? (2.0 points)<BR>\n" );
document.write( "A) subtract b squared from both sides of the equation and then square both sides of the equation<BR>\n" );
document.write( "B) subtract b squared from both sides of the equation and then take the square root of both sides of the equation<BR>\n" );
document.write( "C) take the square root of both sides of the equation and then subtract b squared from both sides of the equation<BR>\n" );
document.write( "D) square both sides of the equation and then subtract b squared from both sides of the equation<BR>\n" );
document.write( "9.<BR>\n" );
document.write( "The equation C=3.14d is an example of a __?__ variation where the constant of variation, 3.14, is the approximation for pi. (2.0 points)<BR>\n" );
document.write( "A) Direct<BR>\n" );
document.write( "B) Inverse<BR>\n" );
document.write( "C) Joint<BR>\n" );
document.write( "D) Combined<BR>\n" );
document.write( "10.<BR>\n" );
document.write( "Which of the following is the inverse function of f(x)=2x-3?<BR>\n" );
document.write( "In other words, find f -1(x). (2.0 points)<BR>\n" );
document.write( "A) 2y-3<BR>\n" );
document.write( "B) (x-3)/2<BR>\n" );
document.write( "C) (x+3)/2<BR>\n" );
document.write( "D) 2(x+3)<BR>\n" );
document.write( "11.<BR>\n" );
document.write( "In the graph, which of the following is NOT true?<BR>\n" );
document.write( "(2.0 points)<BR>\n" );
document.write( "A) m = 2<BR>\n" );
document.write( "B) m = -2<BR>\n" );
document.write( "C) b = 5<BR>\n" );
document.write( "D) descending line<BR>\n" );
document.write( "12.<BR>\n" );
document.write( "Which of the following is an equation of a horizontal line? (2.0 points)<BR>\n" );
document.write( "A) y=4<BR>\n" );
document.write( "B) x=6<BR>\n" );
document.write( "C) x+y=2<BR>\n" );
document.write( "D) y=2x+3<BR>\n" );
document.write( "13.<BR>\n" );
document.write( "What is the equation of the x axis? (2.0 points)<BR>\n" );
document.write( "A) x = 0<BR>\n" );
document.write( "B) y = 0<BR>\n" );
document.write( "C) x + y = 0<BR>\n" );
document.write( "D) There is no equation<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223625 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=223625\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please re-post your question and be specific about the problems you are having. <BR>\n" );
document.write( "Use the other posts as a guide to what is appropriate. <BR>\n" );
document.write( "Include any partial work you may have completed showing where you're stuck. <BR>\n" );
document.write( "Don't just list 15 questions and expect solutions.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );