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

Tutors Answer Your Questions about Graphs (FREE)

Question 182002: Identify the percent,whole and part in the following. Do not solve for any unknowns.
49 is 50% of what number of injections
percent ___
whole ___
part ___
Click here to see answer by nerdybill(7384)

Question 182066: A motel clerk counts his $1 and $10 bills at the end of a day. He finds that he has a total of 51 bills having a combined monetary value of $213. Find the number of bills of each denomination that he has.
The clerk has ____ ones and ____ tens.

Click here to see answer by Earlsdon(6294)

Question 182083: Find the slope of a line containing a pair of points (2,1) and (10,-7). I am not good at algebra. Please help!!!!!
Click here to see answer by jim_thompson5910(35256)

Question 182087: use the intercepts to graph the equation x+4y=8. would the equation read 4y=-x+8
y=-x+2 (-1,2). Is this correct.
Click here to see answer by jim_thompson5910(35256)

Question 182064: a^2b^3/ab^5
Click here to see answer by checkley77(12844)

Question 182065: Two of the top grossing concert tours were by a jazz band and a rock band. Together the two tours visited 174 cities. The jazz band visited 96 cities more than the rock band.
How many cities did each group visit.
Jazz band _____
Rock band _____
Click here to see answer by mastermath(14)

Question 182193: Given the line y=ax with a>0,and the line y= -ax+k with an x intercept of (n,0)
find the value of k in terms of a and n.find the point of intersection of the two lines by setting the equations for the lines equal to each other.
Find the area of the triangle with vertices at (0,0),(n,0)and the point of intersection.
this is for a homework project due on feb 23.My instructor has not taught us exactly how to do this and i am deffinatly one of those people who need step by step instructions and i'm totally lost as to how to do the problems and any help would be appreciated.Thank you
Click here to see answer by solver91311(24713)

Question 182192: The question asks to create a graph of the followinf lines y=3/5x-4
y=-1/3x+2 and y=-5x-7 and indicate the points of intersection which i think i did because the next section says you should now have a triangle formed by the intersection of the three lines. Which i have graphed and it does make a triangle now it says to find the area of the triangle using two methods
Method 1 A=1/2 bh
Method 2 heron's formula
the second one is stressing me out my instructor has not taught us this and i'm supposed to figure it out on my own but i just keep getting lost trying to find the area of the triangle.Any help will be greatly appreciated
Click here to see answer by ankor@dixie-net.com(22740)

Question 182243: How do you graph (-2,-9) and (-1,-7) on one graph?
Click here to see answer by checkley77(12844)

Question 182139: I would appreciate the help with this problem,
Given
A. Find the x- and y-intercepts of the graph of the equation.
B. Test the equation for symmetry with respect to the x-axis, the y-axis, and the origin.
I would be thankful for any help on atleast part A. I think that the y-intercept is undefined.
Thanks
Click here to see answer by ankor@dixie-net.com(22740)

Question 182290: Write a system of two equations in two unknown for each problem. Solve each system by substitution. The sum of two numbers is �16 and their difference is 8. Find the numbers
Click here to see answer by MathGuyJoe(20)

Question 182278: How do you form A quadratic equation
�
Click here to see answer by Fombitz(32388)

Question 182401: How do i do these problems??
Click here to see answer by Mathtut(3670)

Question 182429: Point(a,-2) lies on the line whose equation is 2x-6y=14. What is the value of a?
Click here to see answer by Alan3354(69443)

Question 182319: Adult tickets to the school musical are $5 and student tickets are $2. There are 300 seats in the auditorium where the musical is being performed. The goal for ticket sales for one performance is at least $900. Make a graph showing the number of each kind of ticket needed to be sold to rach the goal. List theree possilbe solutions.
Click here to see answer by ankor@dixie-net.com(22740)

Question 182432: Find pairs of numbers that satisfy the equations below,and graph the line on graph paper.
x+2y=4
Click here to see answer by stanbon(75887)

Question 182477: y=x+3
y=2x+4
graph
Click here to see answer by Mathtut(3670)

Question 182481: What is and ?
Click here to see answer by Mathtut(3670)

Question 182500: Do the graphical representation for the following equation:
y-2/3x=-1/2
Please supply a detailed explanation.
Click here to see answer by jojo14344(1513)

Question 182603: A tennis club offers two payment options:
Option1: $35 monthly fee plus $4/hour for court rental
Option 2: No monthly fee but $6.50/hour for court rental.
Let x = hours per month of court rental time.
a) Write a mathematical model representing the total monthly cost, C, in terms of x for the following:
Option 1: C=_________________
Option 2: C=_________________

Click here to see answer by stanbon(75887)

Question 182602: Suppose that the length of a rectangle is 3 inches longer than the width and that the perimeter of the rectangle is 78.
a. Set up an equation involving only W, the width of the rectangle.
b. Solve this equation algebraically to find the length of the rectangle. Find the width as well. Use the appropriate units of measure in you answers.
Answer: Length ______, Width ______

Click here to see answer by stanbon(75887)

Question 182650: h(x)=-2(x+1)squared +1
Click here to see answer by Alan3354(69443)

Question 182727: us the graphs of f and g to graph h(x) = (f+g)(x)
Points for f (-3,-3), (-1,1), (2,2)
Points for g (-3,1), (-1,2), (2,-1)
I have the sum of the points now at (-3,-2), (-1,1), (2,1)
Could you check my answer. I'm thinking you add the y's or something like that. I didn't get it in class and the insturctor didn't finish the whole problm. Thanks
Click here to see answer by solver91311(24713)

Question 182892: Graph the equation: 750x + 150y = 500 for x values from minus ten to plus ten. Show steps and explain
Click here to see answer by Edwin McCravy(20054)

Question 182896: Calcate the rate of change or slope of the line using two points
(x1,y1 and x2,y2) on the line
Click here to see answer by solver91311(24713)

Question 182890: Graphically show the area that satisfies the inequality in 4 quadrants:
6x � 2y > 13

Click here to see answer by solver91311(24713)

Question 182894: Is there a free inter-act graph calculator I can use on-line to plug in my points etc?
Click here to see answer by solver91311(24713)

Question 182888: Help! Please explain steps to graphically solving the following set of equations:
2x + 4y = -7
5x - 7y = 25

Click here to see answer by Alan3354(69443)

Question 183005: 1.6 #48
given f(x) =3/8^2-1 and g(x) = x + 1 find f o g(x). Determine the domain.
Click here to see answer by stanbon(75887)

Question 183046: Solve the following by either elimination or substitution method:
{x = 9/4y + 7
{4x - 9y = 30
Is the system inconsistent, are the equations dependent, or is the solution an ordered pair?
Click here to see answer by jim_thompson5910(35256)

Question 183082: The body mass index, I, can be used to determine an individual's risk for heart disease. An index less than 25 indicates a low risk. The body mass index is given by the formula, or model, I = 700w/H^2, where W = weight, in pound's, and H = height, in inches. Jerome is 75 inches tall. What weights will keep his body mass index between 25 and 33?
Jerome's body mass index will fall between 25 and 33 for the set of all weights such that ____< W < ____.
(round to the nearest whole number as needed)
Click here to see answer by stanbon(75887)

Question 183036: A) write in slope-intercept form (b) give the slope of the line, (c) give the y-intercept, and (d) graph the line.
Click here to see answer by Alan3354(69443)

Question 183037: Graph the equation: 6y - 7x = 42 for x values from minus ten to plus ten
Click here to see answer by Alan3354(69443)

Question 183128: 0.17x - 0.35y = 7
5x + 7y = 76 answer in decimal form and explain the steps to me please
Click here to see answer by josmiceli(19441)

Question 183331: I really don't get this!!
7.
The points (1,5), (4,5), and (1,0) represent three corners of a rectangle; find the coordinates of the fourth point.

thank you!!!
Click here to see answer by user_dude2008(1862)

Question 183382: On three consecutive passes, a football team gains 9 yards, loses 10 yards, and gains 24 yards.What number represents the total net yardage?
The total net yardage is ___ yards.
Click here to see answer by checkley77(12844)

Question 183379: Amy paid $86.08 for a pair of running shoes during a 25% off sale. What was the regular price?
(round to nearest cent, if necessary)
Click here to see answer by checkley77(12844)

Question 183397: The function H described by H(x)=2.75x+71.48 can be used to predict the height in centimeters, of a woman whoes humerus (the bone from the elbow to the shoulder) is x cm Long.
Predict the height of a woman whoes humerus is 37 cm long.
The predicted height of a woman whose humerus is 37 cm long is ____ cm
Click here to see answer by jim_thompson5910(35256)

Question 183328: 5.
Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph.

2x + 3y = 9
I really need to see this in progress. thanks.
Click here to see answer by checkley77(12844)

Question 183326: 3.
I've always been terrible at drawing up graphs. I'm hoping that I'll be able to finally understand this better by seeing it action.
Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph.
y = x + 3
thank you.
Click here to see answer by stanbon(75887)

Question 183459: Soy bean meal is 16% protei;.cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320 lb mixture that is 11% protein.
How many pounds of the cornmeal should be in the mixture?
____ Pounds
How many pounds of soybean mixture should be in the mixture?
______ Pounds

Click here to see answer by stanbon(75887)

Question 183462: I tried to get the lowest common denominator and go from there, but I am now stuck with a 9 over m= 1 over m. I think that I need to get either the 9 or the 1 to the other side, but it is a fraction so I don't know how to do that
Click here to see answer by stanbon(75887)

Question 183483: Please help me on graphing the inequality: y>x+3
Click here to see answer by Alan3354(69443)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975