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

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Question 732542: What is the solution for X + 1 = 6 - x
Click here to see answer by lynnlo(4176)

Question 732578: Please help. could you tell me if my answers are correct?
find c if 1/c= 2/5 (I have 5/2)
find w if 1/w = 5 ( I have 1/5)
If 2y=√(x) find the value of y when x is 25( I have y = 5/2)
If 2y=√(x) find the value of y when x is 4 (I have y=1)
If 2y=√(x) find the value of y when x is 81 (I have y = 9/2)
Thank you so much for your help.
Click here to see answer by lynnlo(4176)

Question 732835: How do I draw the graph of: ?
Click here to see answer by mananth(16946)

Question 732902: (5x-3y=16)(4x+5y=-2)
Click here to see answer by vidhyak(98)

Question 732886: Given k is not equal to 0 and (k,2k) and (2k,6k) are two points on the graph of a line, what is the slope of this line?
Click here to see answer by josgarithmetic(39617)

Question 732886: Given k is not equal to 0 and (k,2k) and (2k,6k) are two points on the graph of a line, what is the slope of this line?
Click here to see answer by josmiceli(19441)

Question 732960: Find and simplify the difference quotient f(x+h)-f(x)/h, h#o for the given function
f(x)=7
Click here to see answer by stanbon(75887)

Question 733209: Graph the linear equation:
2x+5y+24=0
~What I tried~
2x+5y+24=0
-24 -24
-------------
2x+5y=-24
-2x -2x
-------------
5y=-24-2x
/5 /5
-------------
y=-4.8-2/5x
Swap these^ around.
y=-2/5x-4.8
But I'm not sure if this is correct.
Thanks.
Click here to see answer by lynnlo(4176)

Question 733708: Find an equation of the line that passes through the points (1, 4) and ( -7, -4)
Click here to see answer by MathLover1(20849)

Question 733707: -5-(-48)/12+(-2)*6

Click here to see answer by MathLover1(20849)

Question 733908: what steps do I use to solve {y=1/2x
{y=-x+3 helping my 9th grader and am totally lost thanks
Click here to see answer by Alan3354(69443)

Question 734089: Complete the square in graphing form: y = x^2 - 7x + 5?
How to solve this? I think I can used the quadratic formula to solve it but I'm a bit confused. I think there are a few ways to solve this. I searched and found this on Yahoo.
http://answers.yahoo.com/question/index?qid=20090806151908AAkOA70
I followed these step by step from this person. It still confuses me and I think this person made a mistake too. Here is what I got so far with mine just by following this person's step by step tips.
y = x^2 - 7x + 5
I moved the 5 over to the other side like he did and got this. Moving it would make turn it into a negative number.
y - 5 = x^2 - 7x
Now to take 7 divide that in half which give us 3.5
Now we take that and square root it. It comes out to be 12.25
So now we are here.
y - 5 + 12.25 = x^2 - 7x + 12.25
Then
y + 7.25 = x^2 - 7x + 12.25
and following the steps that turns out to be this.
y + 7.25 = (x-3.5)^2
This is where I get all confused from this point on. I learned from asking on Yahoo that the 12.25 remaining on the right side is not needed. I can just dropped that. Now I have to move the 7.25 from the left side, which used to be a -5, to the right side again. As before when I changed the 5 to a -5 when I moved it from the right to the left, do I change it again as I move it to the right?
It should end up being this.
y = (x-3.5)^2 - 7.25
Right? More confused now. Following his steps on Yahoo, I found out that the Vertex is (3.5, -7.25). I'm guessing the -3.5 in the equation changes into a positive and the -7.25 stay the same. How do I graph it and how do I solve the remaining. I Google the equation and it show me the graph. It's turns out being a U shape on the graph but I don't know where I should put all the points on the line.
Sun
Click here to see answer by nerdybill(7384)

Question 734056: Write this equation y = -3x -6; (-1, 5) in parallel slope intercept form
Click here to see answer by lynnlo(4176)

Question 734169: at 2:10 Joyce was 42 miles from home. At 2:30 she was 21 miles from home. find her average rate of travel. then find the slope. I do no that rate mean to divide problem but I am a little because I graph it can some one please help me to understand a little better

thanks Desiree

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

Question 734879: Which number would not be a possible solution to
-10m - 8 ≧ 12m - 10?
Click here to see answer by Edwin McCravy(20054)

Question 734871: Which number would not be one of the possible solutions to this inequality?8t-12>16t+4.a�-3 b�-4 c�-2 d�-12

Click here to see answer by rothauserc(4718)

Question 735173: mi rappresenti sul piano cartesiano questo:
y = 4x - 1
Click here to see answer by MathLover1(20849)

Question 735285: graph the following line: -7x+5y=0
graphing linear equations by plotting points
Click here to see answer by solver91311(24713)

Question 735495: complet each table with 3 ordered pairs y=1/3 x-3 and graph
Click here to see answer by mananth(16946)

Question 735612: How do you graph y=-3
Click here to see answer by Alan3354(69443)

Question 735592: Would you pls help me with this problem?
Discuss when each statement is true and when it is false. Provide one example when each statement is true and one example when each is false.
Statement 1: The square root of a sum equals the sum of the square roots.
Statement 2: The square root of a quotient equals the quotient of the two square roots.
Thanks

Click here to see answer by lynnlo(4176)

Question 735618: how do I graph y= -4/5x-1? Thank you in advance.
Click here to see answer by solver91311(24713)

Question 735618: how do I graph y= -4/5x-1? Thank you in advance.
Click here to see answer by rothauserc(4718)

Question 735650: Susan can paint a room in 4 hours. Her younger sister Kay can do the same job in 6 hours. In how many hours can they do the job if they work together?
Thanks!
Click here to see answer by checkley79(3341)

Question 735644:
How many pounds of cashew nuts selling for 90 cents a pound must be mixed with 30 pounds of peanuts selling at 40 cents to make a mixture which sell for 65 cents a pound?
Thanks!
Click here to see answer by checkley79(3341)

Question 735653: A car travels 400 miles in 7 hours. Before noon the driver averages 60 miles per hour, but after noon he averages only 50 miles per hour. At what time did he leave?
Click here to see answer by lwsshak3(11628)

Question 735647: How many quarts of water must be added to 40 quarts of solution which is 5 percent acid solution to dilute it to a 2 percent solution?
Thanks!
Click here to see answer by lwsshak3(11628)

Question 735778: How do I solve and graph 3x + 5y = 0. I need step by step instructions on how to move y to one side.
Click here to see answer by rothauserc(4718)

Question 736051: I need help with Ax+By=C with the question Write in standard form y=3x+2? help please!
Click here to see answer by stanbon(75887)

Question 736051: I need help with Ax+By=C with the question Write in standard form y=3x+2? help please!
Click here to see answer by josmiceli(19441)

Question 736049: A submarine that is 7500 meters below sea level surfaces at a rate of 80 meters per minute. The depth of the submarine after M minutes is given by d(m) = -7500 + 80m Give the range and domain of this function make a table for this function
and graph
Click here to see answer by josmiceli(19441)

Question 736135: Can you please help me graph y= -3x+4. thank you
Click here to see answer by ohtheirony(35)

Question 736132: How do you graph x=3. Thank you for your help.
Click here to see answer by ohtheirony(35)

Question 736137: please help!! I need to graph y=1/2x-3
Click here to see answer by ankor@dixie-net.com(22740)

Question 736136: Can you please help me graph y=x+2
Click here to see answer by checkley79(3341)

Question 736133: Can you please help me graph y= -3x+4. Thank you!!!!!!
Click here to see answer by checkley79(3341)

Question 736219: Find vertex and x-intercepts of the function
Y = x2 + 4x + 7
Click here to see answer by Alan3354(69443)

Question 736281: i need to graph this equation
-x+3y=-12
y=-5
x=
Click here to see answer by josgarithmetic(39617)

Question 736251: a. find the value of the objective function at each corner of the graphed region.
b. use the values to determine the maximum value of the objective function and the values of x and y for which the the max occurs
Objective function
z=7x+11y
Constraints
x is greater than or equal to 0 and y is greater than or equal to 0
x+y is less than or equal to 11
x+3y is less than or equal to 18

Click here to see answer by KMST(5328)

Question 736530: Which of the following is the equation of a line that passes through (-2, -1) and (-4, -3)?
Click here to see answer by stanbon(75887)

Question 736642: How do I sketch the graph of each line?
y=1/4x+4
Thank you for your help. I am lost.
Click here to see answer by stanbon(75887)

Question 736732: graph the line containing the point P and having slope m. P=(-8,4), slope undefined
Click here to see answer by MathLover1(20849)

Question 736783: How do I graph -3y ≥ 6x-3
Click here to see answer by josgarithmetic(39617)

Question 736780: Hi I'm Alyssa I'm in junior high and my math average is a 77.75 tomorrownisnthe last day of the marking period and we have a test I need help

Click here to see answer by Alan3354(69443)

Question 736809: HOw is this solved?
Write the slope form of the line that passes through the point A(-5,9) AND is perpendicular to the line with equation 2y-3x+5=0
Click here to see answer by josgarithmetic(39617)

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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