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

Tutors Answer Your Questions about Graphs (FREE)

Question 49026: Please help me find the y-intercept.
x � y = 4

Click here to see answer by tutorcecilia(2152)

Question 49030: 2r + 5 < -1, 3t ≥ 6t + 12,1 + 2x < 2(x-1)
Click here to see answer by AnlytcPhil(1806)

Question 49023: How do I determine which two equations represent parallel lines?
y = �5x + 1
y = 5x + 1
y = x + 1
y = �5x + 5

Click here to see answer by venugopalramana(3286)

Question 49048: Can you show me how to do this problem: 2x - y > 5
Click here to see answer by tutorcecilia(2152)

Question 49112: Please help write the equation of the line which passes through the point (2, 1) and is parallel to the line with equation y =5/2x + 6
Thank You!
Click here to see answer by Earlsdon(6294)

Question 49113: Find the slope of the line passing through the points (8, 7) and (5, 10)
Click here to see answer by Earlsdon(6294)

Question 49116: Please help graph the following inequality
3x-4y<12
Click here to see answer by venugopalramana(3286)

Question 49115: Please help graph the following inequality.
4x+y ≥ 4
Click here to see answer by venugopalramana(3286)

Question 49127: Graph each system of linear equations to find the solutions
y=x+1
y=3x+3

y=x-5
y= -1/2+4
Click here to see answer by tutorcecilia(2152)

Question 49126: Graph each system of linear equations to find the solutions
y=x=1
y=3x+3

y=x-5
y= -1/2+4
Click here to see answer by tutorcecilia(2152)

Question 49177: Solve and graph the solution set. 3x > 7x + 20
A)
__________________________
�5 0
B)
_________________
�5 0
C)
___________
0 5
D)______________________________
0 5

Imagine these lines as arrows - please help

Click here to see answer by Nate(3500)

Question 49188: 50+10=
Click here to see answer by checkley71(8403)

Question 49199: I needed to find the slope of a graphed line.
I came up with the following values x,y (0,4) and xy (1.5,0)
I am stuck on finding the slope. Please help
Click here to see answer by Earlsdon(6294)

Question 49181: Graph using the intercept method: x + 3y = 6.
Click here to see answer by Born2TeachMath(20)

Question 49259: Can you please help me? I don't quite get how to answer this question:
solve this equation y=-1/2x if the domain is {-2, -1, 0, 1, 2}
What i get is that you have to plug in the numbers, but how do i present the answer?? Please help!
Click here to see answer by AnlytcPhil(1806)

Question 49281: WRITE AN EQUATION IN SLOPE INTERCEPT FORM OF THE LINE SATISFYING THE GIVEN CONDITIONS. PASSES THROUGH(5,4) AND (6,-1)
Click here to see answer by AnlytcPhil(1806)

Question 49280: Find the slope and y intercept
x=-8
Click here to see answer by AnlytcPhil(1806)

Question 49279: Find the slope of any line perpendicular to the line through point (6,3)and (7,7).
Click here to see answer by AnlytcPhil(1806)

Question 49278: Give f(x)=5x^2-3x+1, find f(-2).
Click here to see answer by AnlytcPhil(1806)

Question 49277: SOLVE THE EQUATION M-2N=9 IF THE DOMAIN IS {-1,0,5}
Click here to see answer by AnlytcPhil(1806)

Question 49276: Write the equation of the line that passes through point (1,-8) with a slope of 0.
Click here to see answer by longjonsilver(2297)

Question 49275: SOLVE 3X+Y=6 FOR Y
Click here to see answer by AnlytcPhil(1806)

Question 49331: Please help me graph the following inequality
3x-4y<12
Thank You in advance for your help
Click here to see answer by tutorcecilia(2152)

Question 49330: Hi , I need some help graphing the function. I came up with the figures, just do not know how to put it on the graph
f(x)=-2x-5
y = mx + b
f(x) = -2x - 5
Slope, m = -2
Intercept, b = -5

Starting on the y axis, where y = -5, move one unit to the left and two units up. Connect these two points with a straight line.

Another way i came up with:
Find f(0): y = -5
Find x when y = 0
0 = -2x - 5
x = -5/2
Connect these two points on the axes with a straight line.

Click here to see answer by tutorcecilia(2152)

Question 49337: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number.
Click here to see answer by mszlmb(115)

Question 49339: Sally bought three chocolate bars and a pack of gum ad paid 1.75. Jake bought two chocolate bars and four packs of gum and paid 2.00. Find the cost of a chocolate bar and the cost of a pack of gum.
Click here to see answer by mszlmb(115)

Question 49358: what is the slope of x + 4y = 8
is it (2,0)??
Click here to see answer by Nate(3500)

Question 49435: Find the value of " x " such that the slope of the line containing (x,5) and (3,-1) is 4
Click here to see answer by Born2TeachMath(20)

Question 49393: Graph:
y "is less than or equal to sign" 2x-2
Thanks!
Can you show me how one tutor got the points (0,-2) and (1,0) through the problem because that's the one part I really don't understand.
Thanks again!
Click here to see answer by Born2TeachMath(20)

Question 49503: 3(2x+5) =3
Click here to see answer by checkley71(8403)

Question 49506: the problem consist of:
height / shoe size
60 / 7
63 / 7
56 / 7
57 / 7
58 / 7
61 / 7-1/2
64 / 7-1/2
66 / 8
66 / 8
69 / 8
60 / 8-1/2
61 / 8-1/2
57 / 9
65 / 9
66 / 9
60 / 9-1/2
68 / 10
68 / 11
we are having trouble understanding how to graph this, any help would be great.
Brad Jaques 8th grade.
Click here to see answer by Osran_Shri(18)

Question 49583: Find the slope of the line passing through the points(-8,-3) and (-2,2).
Click here to see answer by arunraiindian(5)

Question 49586: Angus invested 18,000, part at 3% and part at 5%. If the total interest at the end of the year is 660, how much did he invest at each rate?
Click here to see answer by checkley71(8403)

Question 49584: Write the equation of the line passing through (4,4), and (4,2).
Click here to see answer by checkley71(8403)

Question 49719: How do I find Y- Intercept, the slope, and the equation of a line if the line crosses y at (0,1)?
Click here to see answer by checkley71(8403)

Question 49840: Determine which two equations represent perpendicular lines.
y=4/7x-3
y=3x-4/7
y=-1/3x + 4/7
y=1/3x-3 4/7
Click here to see answer by rapaljer(4671)

Question 49839: Write the equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x+1.
Click here to see answer by rapaljer(4671)

Question 49849: hi there,
can you plese explain to me how i can solve this inequality. i'm not sure what to do with the third term and i don't know what it means by graph the solution set.
1. graph the solution set for -2+2b < 3b+5 < 8-3b
thanks in advance
Click here to see answer by stanbon(75887)

Question 49741: I need help creating an equation for the below real life situation in which you would use a linear or straight line graph and create one to fit the example. I created the example, I just do not know how to put it into a equation or inequality.
Can someone please help. I am running out of time to submit my answer. I was out on the apot in a discussion class and I do not know how to respond.

Please see my example
An example of when a linear line graph may come in handy for interpreting data, would be charting a company's assets under management. My company uses one to show the amount of increase/decrease from one quarter to the next and also annually at a chosen time, showing one year to the next. For example, my company Franklin Templeton's Assets under management in 2002 was about 123 Billion, Month ending May 31, 2005 was a little over $ 417 Billion and the same time frame one year later, May 31,2006 was a little over 492 Billion ((yes... almost a trillion!). . A graph would be able to show the assets under management and how they have grown from one year to the next. People can track their personal investments from one month to the next or yearly, whichever method they prefer. However, should never be used to predict future growth because the market can fluctuate. But I think it is a perfect way to put a financial picture into play at a corporate or personal level.

Click here to see answer by stanbon(75887)

Question 49902: If the line through (1, 3) and (a, 9) is parallel to 3x-5y=2, what is a?
Please help me.
Click here to see answer by Nate(3500)

Question 49884: how do you get the equation from a line?
Click here to see answer by rapaljer(4671)

Question 49914: How do I find the distance of this problem? I'm not sure how to start.
(-7,7) and (2,-5)
Click here to see answer by mathchemprofessor(65)

Question 49914: How do I find the distance of this problem? I'm not sure how to start.
(-7,7) and (2,-5)
Click here to see answer by AnlytcPhil(1806)

Question 50001: How do you graph "2X+3Y=6". I have tried to form this into a "y=mx+b" equation but I couldn't figure how.
Click here to see answer by tutorcecilia(2152)

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