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

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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 188163: x^2+8x+15
Click here to see answer by vleith(2983)

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(24713)

Question 188249: plot the graph y = 12 - x - x squared
Click here to see answer by jojo14344(1513)

Question 188248: plot the graph y = 12 - x - x squared
Click here to see answer by Alan3354(69443)

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(1862)

Question 188661: Graph y=6tan(x).
Click here to see answer by user_dude2008(1862)

Question 188662: Graph the periodic function and determine its period. y=8sin(2x)+1
Click here to see answer by user_dude2008(1862)

Question 188663: Graph Y=Tan(12x)=3 Identify its period and undefined values.
Click here to see answer by user_dude2008(1862)

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(69443)

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(35256)

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(35256)

Question 188753: write the slope intercept of the line ( 7,-10) slope -3/4.
Click here to see answer by nerdybill(7384)

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(69443)

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(24713)

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(69443)

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(69443)

Question 189068: y-3>5
Click here to see answer by percy92(2)

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(35256)

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)

Question 188970: How do you add subtractmultiply and divide fractions
Click here to see answer by checkley75(3666)

Question 189174: X-5>3
Click here to see answer by Mathtut(3670)

Question 189115: The path of a falling object is given by the function S=-16t^2+v_o t+s_o where represents the initial velocity in ft/sec and 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 ankor@dixie-net.com(22740)

Question 189439: Can you please show me how to graph a linear equation in three variables?
Click here to see answer by vleith(2983)

Question 189488: The question is write the slope-intercept form of the equation for the line passing through the given pair of points. the points are (2,0)and(0,5)
Click here to see answer by jim_thompson5910(35256)

Question 189487: what is 12-4x greater than less than 20?
Click here to see answer by solver91311(24713)

Question 189476: How to graph the following problem
y+x=4
-2x-2y=-8
Click here to see answer by solver91311(24713)

Question 189588: x+2y=10,
3x+4y=8
Click here to see answer by jim_thompson5910(35256)

Question 189589: x=1/3y+2,
-2-y=1

Click here to see answer by jojo14344(1513)

Question 189587: y-2x=0,
3x+7y=17
Click here to see answer by jojo14344(1513)

Question 189633: I need to graph this equation 6x-4y=24
Click here to see answer by jim_thompson5910(35256)

Question 189646: Determine the intervals over which the function y= -x square root of (x+6) is a) increasing b) decreasing or c) constant. (Graphing the function on the calculator could be useful)
Click here to see answer by user_dude2008(1862)

Question 189679: 1.You are planning to spend no less than $6,000 and no more than $10,000 on your landscaping project.
Write an inequality that demonstrates how much money you will be willing to spend on the project.

I just wanted to check my work.... I say the solution is 6000 < x < 10,000
- -
Click here to see answer by Mathtut(3670)

Question 189697: how would i graph this inequality
y-4 < x-6
Click here to see answer by jim_thompson5910(35256)

Question 189827: I need to write an equation and graph for both of these problems and I have no clue how to do them. Could you please help me.
A. slope =2 y intercept = 4
B. m = -3 ( 0,3)
Thank you!
Click here to see answer by solver91311(24713)

Question 189986: Please help I have tried and cant come up with the solution.
3. Solve for x. Collect x's on the LEFT side of the inequality. The solution must be presented with x first, the correct inequality symbol, then the number.

4. Solve for x. Collect x's on the LEFT side of the inequality. The solution must be presented with x first, the correct inequality symbol, then the number.

5. Fill in the chart given this linear equation:
3x - y = -10
**Type all your work below the chart.
x y
-2
-1
0
1
2

6. The linear equation y = 5 graphs as a horizontal/vertical/diagonal line (choose the correct label and type it below). Describe how you determined your answer.

Click here to see answer by Alan3354(69443)

Question 189987: Please help I have tried and cant come up with the solution.
. 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.
2x-3y= -5 and write in standard form which is Ax+By=C now to break it down.
A=2x,B=3y,C=-5
2x+(-3)y=-5

4. Solve the system of equations using the substitution method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is "no solution" or "infinitely many solutions" and state how you arrived at that conclusion.
3x + y = 2
2x - y = 3

5. Solve the system of equations using the addition (elimination) method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is "no solution" or "infinitely many solutions" and state how you arrived at that conclusion.
3x - 11y = 9
-9x + 33y = -27

6. Solve the system of equations using the addition (elimination) method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is "no solution" or "infinitely many solutions" and state how you arrived at that conclusion.
4x + 10y = 2
3x + 5y = 5

Click here to see answer by ankor@dixie-net.com(22740)

Question 190112: x/8= -4y/5
Click here to see answer by jojo14344(1513)

Question 190134: the sum of 4 consecutive integers is -82. what are the integers?

equations____________________
integers____________________
Click here to see answer by josmiceli(19441)

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, 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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, 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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