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

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Algebra: Graphs, graphing equations and inequalities

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Question 12069: find the equation of the line that contains the given points.
(1,3) and (2,4)
Click here to see answer by longjonsilver(2297)

Question 12068: Find the equation of the line that contains the given point and has a the given slope.
(-1,2) m=0
Click here to see answer by longjonsilver(2297)

Question 12067: graph by usinh the slope and y-intercept.
y=-3x-1
Click here to see answer by longjonsilver(2297)

Question 12125: what is the slope formula

Click here to see answer by rapaljer(3625)

Question 12149: I'm not too sure where to begin on this. I am from louisiana but my dad showed me this website that he thinks will help me with my alg. 2. I am having a hard time in alg. 2 right now and the help will be greatly appreciated!! okay here goes the problem.
y=1/4 /x/ (I had to use the slanted lines since there is no signs that can be
used for abosoulte value.)..thank you so much for your time and
effort!
Click here to see answer by i dont like math(2)

Question 12179: I need help graphing y > 1/2x + 5.
Click here to see answer by rapaljer(3625)

Question 12312: I'm stuck. I know how to do parts of the basic equations given to me, but the more complicated ones are giving me trouble. Here's my problem: I have to find the length and midpoint of (a,0) and ,0
Click here to see answer by askmemath(368)

Question 12436: The section I'm working on is linear equations in two variables and their graphs. I need to find the slope of the line that goes through each pair of points...(1/2, 2), (-1, 1/2). I do not understand how to graph this or how to figure the slope. I have the same problem with decimals!! Any suggestions you have would be warmly welcomed!! Thank You, Allison Nilsson
Click here to see answer by Earlsdon(4900)

Question 12572: How would you graph 2x+y=6

Click here to see answer by AdolphousC(70)

Question 12569: Graph the linear system and estimate the solution. Then check the system algebraically.
x+2y=9
-x+6y=-1
Click here to see answer by AdolphousC(70)

Question 12553: how do I find the slope, if possible, if the line passing through each pair of points. (3/2,4) and ( -2,0 ).
Click here to see answer by AdolphousC(70)

Question 12670: 4n-2n = 18
Click here to see answer by AdolphousC(70)

Question 12876: I'm doing solving and graphing inequalities y>2x+3
I have solved a different problem y+4 is greater than or equal to 6 by subtracting 4 from both sides and got the answer y is greater then or equal to 2. But I do not know where to begin with y>2x+3. Please help me explain it to my 13 year old. Thanks in advance. Karen.
Click here to see answer by AdolphousC(70)

Question 12920: What is the slope intercept form of 3y+x-9=0?
Click here to see answer by chicosgurrl(2)

Question 13034: 2y + 9x - 7 y=3 and x= 5
Can you help?
Click here to see answer by pwac(251)

Question 13034: 2y + 9x - 7 y=3 and x= 5
Can you help?
Click here to see answer by curlyq082192(2)

Question 13230: y=-2/5x+1
Click here to see answer by usyim88hk(157)

Question 13249: Find all points having an x -coordinate of 2 whose distance from the point (-2,-1) is 5? I think it uses distance formula or a midpoint formula.
Click here to see answer by akmb1215(68)

Question 13406: Your help is appreciated.
Convert equation of the parabola y = -6x^2-6x to standard form and then find the product a x h x k.
Thank you.
Click here to see answer by Earlsdon(4900)

Question 13450: My son missed a class on graphing and shading the solutions. Can you give us a place where we can find this info or do you have a simple explanation of this procedure?
Click here to see answer by rapaljer(3625)

Question 13770: The slope-intercept equation of the line through the points (7.1,-8.3) and (-2.5,6.7) is y=mx+b.
Where m= 15/-9.6 and b=?
Click here to see answer by Alwayscheerful(414)

Question 13793: the slope-intercept quation of the line through the points (4.1,-4.3)and(-3.5,4.7)is y=mx+b
Click here to see answer by glabow(165)

Question 13768: here is my question, the coordinates of the point have equal absolute value, the point is in teh second quadrant, and the distance of the point from teh origin is 2. x= and y= .
Click here to see answer by glabow(165)

Question 13749: Hey I also have another question I am so sorry. But I don't understand what or how I would do this.
Write an equation of the line that passes through (6,-10) and is perpendicular to the line that passes through (4,-6) and (3,-4).
I have another one that looks similar only it deal with Parallel. so I figure if I get the perp. one then I should be able to figure out how to do the Parallel one. right?
Click here to see answer by longjonsilver(2297)

Question 13745: I have not really been to good at math and I never had a good Alg. teacher b/c they all quit or something happend so we were stuck w/diff. subs and they didn't make us do hw b/c they didn't understand Alg either. So question is for this Alg. 2 assign. deals w/equations of Lines
Going by 3's
there is a graph-- there is a pt on --going across -9 and down -6
then there is another pt. --going across -12 and down -18
it's asking to write an equation of the line. I don't know exactly how to interpret the graph b/c graphing for me is hard (to understand.)
P.S. My teacher said to use the y-y=m(x-x) formula but I am just totally confused please help me it would be greatly appreciated so I can do the other prob. I am having troubles w/.
Click here to see answer by longjonsilver(2297)

Question 13044: 15x-3y=7 find slope

Click here to see answer by LilSkittleMd(119)

Question 13029: how do you solve this problem?
y=3(6x-1)
Click here to see answer by LilSkittleMd(119)

Question 13887: It says to solve the system of equations using the substitution method.
x+y=1
3x+4y=1
I think I'm supposed to see what X and Y are equal to, but I keep getting some pretty messed up answers.
Click here to see answer by elima(1433)

Question 13911: 11-5y<-77, how do I get the y by itself? Do I add 5 on each side? Please help me! I am so thankful I found this website:)!
Click here to see answer by rahman(247)

Question 12249: 3x+5y=0
2x-5y=-25
Click here to see answer by rahman(247)

Question 13345: When would you want to use the slope-intercept versus the point-slope form of a line?

Click here to see answer by LilSkittleMd(119)

Question 14048: what is the answer for y=3x+1
Click here to see answer by elima(1433)

Question 14131: Here is the question
I just don't have any idea where to start...
The lines y=6x + 15 , y=0 , and x=0 enclose a triangular region. Find the area of the region.
Thanks
Click here to see answer by longjonsilver(2297)

Question 14299: Find an equation for the line with the given property. Express answer in general form and slope-intercept form of the equation of a line.
Problem
Perpendicular to the line x = 8; containing the point (3,4)
Click here to see answer by Alwayscheerful(414)

Question 14162: I'm back!! one more question here. How do I write the equation of the line that passes through point (0, 4) with a slope of -7/2? I am so confused on this. thanks for your help.
Click here to see answer by LilSkittleMd(119)

Question 14353: Instructions: Find an equation for the line with the given properties.Express answer in general form or slope-intercept form of the equation of a line.

Problem: Find the equation of the line having a slope of zero and containing the point (3,8).
This is what I did. Please tell me where I went wrong.
1.) y-8=0(x-3)
2.) y-8=0 (answer)
Click here to see answer by Earlsdon(4900)

Question 14452: Please help me with this problem. I can't figure it out. Here is the problem:
The line through points (a,b) and (c,d) has slope m = _________,
provided a is not equal to c.

Click here to see answer by Earlsdon(4900)

Question 14564: Given the equation y= -3/2x + 4. Graph the equation.
Click here to see answer by Alwayscheerful(414)

Question 14610: Please help with this inequality: 8.9k is greater or less than 17.8
thanks!
Click here to see answer by longjonsilver(2297)

Question 14607: Please help me with this inequality: 56<14t
thank you!
Click here to see answer by glabow(165)

Question 14611: Please help me with this inequality:X divided by 2 is less than or greater to 52
Thank you very much!
Click here to see answer by glabow(165)

Question 14609: please help with this inequality: x + 3.4 > 5.8
thank you!
Click here to see answer by glabow(165)

Question 14608: PLease help me with this inequality: n-34 is less than or greater to 16
thanks a lot!
Click here to see answer by glabow(165)

Question 14606: Please help me find the inequality for: 22is less then or greater to b+22
Click here to see answer by glabow(165)

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