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

Tutors Answer Your Questions about Graphs (FREE)

Question 64944: Sketch using transformations: f(x) = -2|x+2|. Start with the basic graph and show all stages. I know that there are supposed to be four graphs, but otherwise I'm stuck. Help!
Click here to see answer by funmath(2933)

Question 64955: can i see graphing of equations
Click here to see answer by funmath(2933)

Question 64962: PLEASE HELP:
FIND THE MIDPOINT OF THE LINE SEGMENT WITH ENDPOINTS (-4,8) AND (7,2)
Click here to see answer by josmiceli(19441)

Question 64965: Can anyone tell me which points the line would run through:
Use the following graph of f(x) = |x| to sketch the graph of y = f(x-3)
Click here to see answer by funmath(2933)

Question 64977: Can someone help me with this problem:
Use the graph of g(x) = |x| to sketch the graph of y = 1/3 |x-1|
Click here to see answer by cristiana(10)

Question 64996: -2x+5y=10 I need to find a point on a grid and how to do it. Thank you for your help!
Click here to see answer by stanbon(75887)

Question 64753: Driving down a mountain, Tom finds that he has descended 1800 ft
in elevation by the time he is 3.25 mi horizontally away from the top of the
mountain. Find the slope of his descent to the nearest hundredth.
Click here to see answer by ankor@dixie-net.com(22740)

Question 64822: What is the center and radius of the circle with equation x^2+y^2+2x-3y-4=0
Click here to see answer by funmath(2933)

Question 64751: Write the equation of the line with given slope and y-intercept. Then graph each line using
the slope and y-intercept.
Slope: 5; y-intercept: (0, -2)
Click here to see answer by 303795(602)

Question 65112: please help me sketch the graph of y=2x and 3y=7x+3 over the interval -3
Click here to see answer by stanbon(75887)

Question 65128: My daughter's teacher gave her class the following and told them to create an equation that solves for "y".
The numbers are on a T Graph. When X=1 Y=13. When x=2 y=22. When x=3 y=35. When x=4 y=44. I came up with y=9x+4 however, it doesn't work all the way through. Namely it works for the first and second sets of variable but not the third and fourth sets. Can you give us any clues?
Click here to see answer by 303795(602)

Question 65153: How do I slove x+Y=-1 and 2x-y=-8
The problem says Find the Solution to the system by graphing

Click here to see answer by stanbon(75887)

Question 65160: 3(x+4)-5(x-1)<5

Click here to see answer by stanbon(75887)

Question 65178: I need help finding the solution set and graph of the inequality x+5<6. The answer should be on a scale with circles that are filled in or not. i dont understand this question!
Click here to see answer by stanbon(75887)

Question 65175: solution set and graph for the inequality x+5<6
Click here to see answer by stanbon(75887)

Question 64826: If f(x) = 2x, describe the transformation of the curve for g(x) = -2 x-2
I desparetely need help with this thank you
Click here to see answer by mszlmb(115)

Question 65116: graph
F(x) = x-2 there is a line under x-2
x+4
Click here to see answer by funmath(2933)

Question 65269: My question says use the slope formula to calculate the slope of the line that passes through the points (4,7) and (6,2). How do you do that?
Click here to see answer by stanbon(75887)

Question 65102: Write teh slope-intercept from of an equataion of the line that passes through the given point and is parallel to the graph of each equation.
3,2),y=x+5
x-2,5),y=-4x+2
please help explain how and what the teacher is asking for. Thanks
Click here to see answer by tanimachatterjee(60)

Question 65271: -6x + y = -1 (1,7)
Click here to see answer by funmath(2933)

Question 65271: -6x + y = -1 (1,7)
Click here to see answer by Edwin McCravy(20054)

Question 65414: How do you graph x-y=12 on the rectangular coordinate system where you have the x- and y-axes Do I first put this in a slope -intercept form; y=mx+b

Click here to see answer by amran(4)

Question 65435: Find the equation of the line that passes through the point (7,5) and is perpendicular to the line 2x - 3y=6
Click here to see answer by checkley71(8403)

Question 65487: This problem stumped me, because my calculator cannot put in the fraction -3/5 * 2, i know its probaly really easy, but I still dont really know.
Click here to see answer by stanbon(75887)

Question 65427: help!
Find the equation of the line that passes through the point (7,-2) and is parallel to the line that passes through (-2,-2) and (3,3).
Click here to see answer by checkley71(8403)

Question 65532: Please help!
Find the equation of the line that passes through the point (7,-2) and is parallel to the line that passes through (-2,-2) and (3,3).
Click here to see answer by checkley71(8403)

Question 65560: Solve each of the following systems of linear inequalities graphically.
3x � y (Less than or equal to) 6
x (greater than or equal to) 1
y (Less than or equal to ) 3

Click here to see answer by Nate(3500)

Question 63977: I am having trouble understanding how to solve this system by graphing, everytime I try, I get a graph with a shaded area and no lines. this does not look right to me, will you help me understand how to graph this?
x+y<5
0<=y<=3
x>=1

Click here to see answer by venugopalramana(3286)

Question 64741: 3x-y-6=0
Click here to see answer by checkley71(8403)

Question 65352: please help me slove this equations step by step
Click here to see answer by funmath(2933)

Question 64761: Given a line containing the points (1,3), (2,4), (3,5) determine the slope-intercept form of the equation, give one additional point on this line and graph the function.

What is the equation of line in slope-intercept form?

Give one additional point in (x,y) form that would fall on this line:

Graph the function:

Click here to see answer by checkley71(8403)

Question 63791: Solve this word problem. The cost of 1000 cubic feed of natural gas is $39 and the cost of 3000 cubic feet is $99. There is a linear equation that expresses the cost C in terms of the number of cubic feet n. Find the equation and find the cost of 2400 cubic feet of natural gas.
Please explain the procedure you used to solve this problem.
Thank you.
Click here to see answer by venugopalramana(3286)

Question 64969: Solve the system of inequalities by graphing.
y>x
2x+y
2. graph:5x+3y greater than or equal to 15
x is less than or equal to y
x is less than or equal to 4

3. find the max. and min. values and where they occur for z=4x+7y subject to the constraints:
x+y is greater than or equal to 2
3x-4y is less than or equal to 6
6y is less than or equal to x+12

Click here to see answer by checkley71(8403)

Question 65626: Find the slope of any line perpendicular to the line through points (0,5) and (-3, -4)
Click here to see answer by Nate(3500)

Question 65625: use the concept of slope to determine if the given figure is a parallelogram or a rectangle.(draw the diagram to view the image in order to answer this question)
The points are: (2,0),(-1,-2),(-3,1), and (0,3). connect the dots and answer the questions.

Click here to see answer by Nate(3500)

Question 65630: Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
(0,5), m = -3/5

Click here to see answer by venugopalramana(3286)

Question 65629: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(20) (-1,3) and (4, -2)
(24) (2, -3) and (2,4)

Click here to see answer by venugopalramana(3286)

Question 65628: I just like to know if these are correct.I need to make the graph
Equation: Y= -2x + 4
the where the line goes through is.
(0,4) , and (-2,0) the line stsrts from the posite coordinate to the negative side.

Equation: Y= 5x - 2
the where the line goes through is.
(0,5), (0,-2)
Equation: Y= -3/4x + 8
i don't know how to graph this one?

Click here to see answer by venugopalramana(3286)

Question 65594: Find the equation of the line that passes through (5,-3) and is parallel to the line 3x + 4y = 8
Click here to see answer by venugopalramana(3286)

Question 63740: Could someone please help?
Use Descartes' Rule of Signs to find the number of possible number of positive zeros and the possible number of negative zeros of Q(x)=x^42x^3+4x^2-3x-2.
Find the horizontal and vertical asymptotes of the function f(x)=x^2+3x-2/x-4
Click here to see answer by venugopalramana(3286)

Question 65655: Find values for m and b in the following system so that the solution to the system is (-3,4).
5x + 7y = b
mx + y = 22

Click here to see answer by praseenakos@yahoo.com(507)

Question 65654: Solve each of the following systems by graphing.
2x � y = 4
2x �y = 6
Solve each of the following systems by graphing.
X �2y = 8
3x �2y = 12
Solve each of the following systems by graphing.
3x �6y = 9
X �2y = 3

Click here to see answer by praseenakos@yahoo.com(507)

Question 65658: Solve each system by addition. If a unique solution does not exist, state whether the system is consistent or dependent.
2x +3y = 1
5x +3y = 16

Click here to see answer by ptaylor(2198)

Question 65647: we have graphed the boundary line for the linear inequality. Determine the correct half-plane in each case, and complete the graph.
Y > 3
THE GRAPH THAT IS ON THE BOOK ITS A LINE JUST GOING THROUGH ALL 3 ON THE TOP TWO THE NEGATIVE SIDE AND POSITIVE SIDE LIKE THIS:
<----------3------------------>
i DON'T KNOW HOW TO ANSWER THIS AND I DON'T EVEN UNDERSTAND WHAT IS ASKING
Click here to see answer by funmath(2933)

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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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, 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