# Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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 Algebra: Graphs, graphing equations and inequalities Solvers Lessons Answers archive Quiz In Depth

 Question 187674: Hi, 3x^2 + 3y^2 - 6x - 6 = 0 (describe and sketch the given equation) I believe this is a circle and I've tried "completing the square", but without the b(y) part of the equation, I'm lost. Please help. Thank you, Lynn Click here to see answer by stanbon(57984)

 Question 187678: This one is giving me a fit. Simplify. 5w^9 z^7* 3w^-2 z^-4 x^5 * 4x^-5 Use only positive exponents to write your answer. Click here to see answer by stanbon(57984)
 Question 187678: This one is giving me a fit. Simplify. 5w^9 z^7* 3w^-2 z^-4 x^5 * 4x^-5 Use only positive exponents to write your answer. Click here to see answer by jim_thompson5910(28717)

 Question 187680: Hello, I'm having trouble graphing a "PieceWise" function. The problem: g(x)={x if x >= 0 {x^2 if x < 0 I have graphed half of the absolute value function from (0,infinity) and half the squaring function from (infinity,0) on the same graph. Can this be done because the absolute value function would color the origin point (0,0) in while the squaring function leaves the origin (0,0) open? I'm probably way off. I hope this is clearly stated. Thanks in advance, Lynn Click here to see answer by jim_thompson5910(28717)

 Question 187691: kuya allan! i try to solve this but my answer is wrong please help me how to find the answer of this given harshhh! -3x+y=4 3x-y=-6 sorry kuya allan if i disturb you! THANKS AGAIN HIHIHIHI! Click here to see answer by edjones(7569)

 Question 187688: who can help me to solve and find the right solution of this given! 1. y=-x+8 x-y=-1 2. 6x+y=-4 6x-y=-1 3. y=-x+8 x-y=-1 im getting too crazy to find the right solution and the right answer please help naman! THANK'S FOR HELPING ME AND I REALY APPRICIATE IT Click here to see answer by jojo14344(1512)

 Question 187698: kuya edjones thanks for anwering my question! 6y-x=-12 1/6x+y=3 this is the another given! i try to solve it but the answer is undefind too am i correct!?? thanks very much! Click here to see answer by Alan3354(31538)

 Question 187705: What is the value of x when 8x-7=5x+2 ? Click here to see answer by nerdybill(7011)

 Question 187815: x-2y-<2 3x+4y-<12 x->0 >,< with - means greater than or less than. The first line x minus 2y equal to or less than 2 The second line 3x=4y equal to or less than 12 The third line x equal to or greater than 0 This pertains to graphing inequalities Click here to see answer by jim_thompson5910(28717)

 Question 187971: how do I find the slope of a line with only one set of coordinates ex.(1,4) Click here to see answer by Alan3354(31538)

 Question 188022: find the x-intercepts for the graph of the following equations without graphing. y= 2x*2 -5x +2 Click here to see answer by Earlsdon(6294)

 Question 188131: Find the equation of the line that has the given slope and passes through the given point. Write the equation in the slope-intercept form. m=-3/4, (3,2) Click here to see answer by Mathtut(3670)

 Question 188244: Graph the inequality. 3x + y <= 5 List the exact coordinates of where the boundary crosses the x axis and the y axis. ANSWER: x intercept ( 0,1.6) y intercept (0,5) 2) Provide the best choice for the correct half plane to be shaded A) Upper left B) Lower right C) Upper right D) Lower left 16.2] ANSWER: A- Upper Left. This is what I came up with, is this correct? Click here to see answer by solver91311(17077)

 Question 188249: plot the graph y = 12 - x - x squared Click here to see answer by jojo14344(1512)

 Question 188248: plot the graph y = 12 - x - x squared Click here to see answer by Alan3354(31538)

 Question 188657: Graph the periodic function. Determine the domain and range. Identify the period and amplitude. Y=6cos(x)+2 I know the amplitude is 6. Click here to see answer by user_dude2008(1861)

 Question 188662: Graph the periodic function and determine its period. y=8sin(2x)+1 Click here to see answer by user_dude2008(1861)

 Question 188663: Graph Y=Tan(12x)=3 Identify its period and undefined values. Click here to see answer by user_dude2008(1861)

 Question 188656: For the exponential function e^x and logarithmic function log x, graphically show the effect if x is halved. Click here to see answer by Alan3354(31538)

 Question 188732: Find the equation of the line parallel to y=7x-9 that crosses (4, 6) The answer I got is y=7x-22.Am I correct? Click here to see answer by jim_thompson5910(28717)

 Question 188749: graph each equation y=x+1 ( the answers in the back of the book i just need to know how the answer was found) Click here to see answer by jim_thompson5910(28717)

 Question 188753: write the slope intercept of the line ( 7,-10) slope -3/4. Click here to see answer by nerdybill(7011)

 Question 188886: x+y<3 GRAPH THE SOLUTION TO THE SYSTEMS OF INEQUALITIES X-Y>5 Click here to see answer by Mathtut(3670)

 Question 188845: The 2 cordinates are: (4,-7) and (-7,4) I need the: Point Slope Form Y-Interecept Form A line parellel to this A line perpendicular Standard Form Click here to see answer by Mathtut(3670)

 Question 188946: Find the equation, in standard form, of the line perpendicular to 2x - 3y = -5 and passing through (3, -2). Write the equation in standard form, with all integer coefficients. Click here to see answer by Alan3354(31538)

 Question 188977: The costs for services at two kennels are shown on the table. Pet Care- Boarding(\$ per day)-\$30/ Bathing(\$)- \$15 Fido's- Boarding(\$ per day)- \$28/ Bathing(\$)- \$27 Joslyn plans to board her dog and have him bathed once during his stay. For what number of days will the cost for boarding and bathing her dog at each kennel ber the same? What will that cost be? If Joslyn plans a week-long vacation, which is the cheaper service? Explain. Click here to see answer by Mathtut(3670)

 Question 189015: What would be an appropiate graph for the following: y = -x to the second power +2x+3 Click here to see answer by solver91311(17077)

 Question 189007: Describe the phase shift of the function and graph it. Y=2sin(x-pi/2)+7 Phase shift=right pi/2 radians What does the graph look like? Click here to see answer by Alan3354(31538)

 Question 189038: Can you help me with this problem? I was unable to copy the graph. This question did not come out of a textbook. Without solving the equation (or factoring), determine the solutions to the equation by inspecting the graph. Click here to see answer by Alan3354(31538)

 Question 189113: Calculate the value of the discriminant of x^(2 )+2x+1=0 By examining the sign of the discriminant in part a, how many x-intercepts would the graph of have? Why? Click here to see answer by jim_thompson5910(28717)

 Question 189116: The path of a falling object is given by the function S=-16t^2+v_o t+s_o where v_o represents the initial velocity in ft/sec and s_o represents the initial height in feet. Also, s represents the height in feet of the object at any time, t, which is measured in seconds. If a rock is thrown upward with an initial velocity of 40 feet per second from the top of a 30-foot building, write the height (s) equation using this information. Click here to see answer by Earlsdon(6294)