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 24793: 2x+y+6=0 in slope intercept form
Click here to see answer by josmiceli(3013)

Question 24796: I haven't taken algebra in 4 years I just need help refreshing. The problem says to find the center and the radius of the graph of the circle.
9x^2+9y^2-6y-17=0
Click here to see answer by Earlsdon(4900)

Question 24711: y-4=3(x-2)
Click here to see answer by elima(1433)

Question 24811: The Problem says to find an equation of a circle that is tangent to both axes, has it's center in the second quadrant, & has a radius of 3. Thank you for your help!!!
Click here to see answer by Earlsdon(4900)

Question 24834: okay hi the section iam doing is graphing linear Inequalities. and now iam doing it says "skectching graphs:sketch the graph of the inequaltiy. and i ahve to do like x+y>-8 and i really have no clue my teacher really didnt do anything to tell us.so if u could tell me the steps i would really appreciate it. thank you
Click here to see answer by elima(1433)

Question 24852: how do you graph y= -2x+3 on a graph??
Click here to see answer by be easy(1)

Question 24852: how do you graph y= -2x+3 on a graph??
Click here to see answer by rapaljer(3625)

Question 24875: how would you graph 2x+y=1 on a graph?
Click here to see answer by Earlsdon(4900)

Question 24881: graph the line whose equation is 2x+y=5
please show me the detail explaination how to draw the graph of linear equation
thanks!
Click here to see answer by josmiceli(3013)

Question 24884: graph 3x+2y=10 plot the points
Click here to see answer by elima(1433)

Question 24884: graph 3x+2y=10 plot the points
Click here to see answer by pwac(251)

Question 24929: okay soo basically i need help..on all this confusing algebra stuuf.. i hope you cann help mee...ok so my ? is that when you have an equation or what ever and you have too graph them for example a y=-x+4,y=2x=1...and you dont have too solve well how do you know where it is on the graph?or even if it is a fraction..ok well i hope you can help!!
Click here to see answer by smartypants(7)

Question 24885: Can you help me I cannot get this and I am afraid to ask the teacher again.
I need to graph the following 4 equations on my graph paper.
(1) 2x+y=9
(2) -x-y = -8
(3) - 3x + 4y = 2
(4) -2x -y = -3
Can you please explain in detail each step and if possible also plot them on a graph.
Thank you.

Click here to see answer by elima(1433)

Question 24886: graph 3x+2y=10 and lo the points
Click here to see answer by elima(1433)

Question 24952: how do you find the domain and range in a table....
x 1 3 5 7 9
y 0 1 2 3 4
Click here to see answer by quentin252(19)

Question 24902: Find the slope of any line perpendicular to the line through points (0,5) and (-3,-4).
Click here to see answer by elima(1433)

Question 24950: How would u graph x> -3 on a graph and plot the points
Click here to see answer by elima(1433)

Question 24951: how would you graph -2(x+y) less than or equal to 6 and (plot the points)
Click here to see answer by elima(1433)

Question 24981: I need help with a problem.We are learning to solve systems by graphing and locating the point of intersection.
I know how to graph each system....by the slope and y-intercept, but when it comes to drawing the graph, the point of intersection is wrong. Is there a special way to start graphing the equation - top to bottom or from bottom to top.
Here are 2 problems: y=3/4x-4 the slope is 3/4
the y-intercept is -4

y=-1/2x+6 slope is -1/2
y-intercept is 6
the point of intersection or coordinates I got was (6,1)
y=-2x+5 slope is -2/1
y-intercept is 5
y=x-10 slope is 1
y-intercept is -10
point of intersection or coordinate i got was (7,-3)
Can there be different coordinates or only one?
Thank you
Click here to see answer by rapaljer(3625)

Question 24900: Write the equation of the line L satisfying the given geometric conditions.
the first one is - L has y-intercept (0, -3) and is parallel to the line with equation y=2/3x + 1.
the second one is - L has y-intercept (0,2) and is perpendicular to the line with equation 2x-3y=6
Click here to see answer by rapaljer(3625)

Question 24894: How would you graph x+y greater than or equal to -3 and plot the points.
Click here to see answer by elima(1433)

Question 24995: Please help me solve this equation 4x-3y<6
Click here to see answer by stanbon(26297)

Question 24897: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
the first one is (-1,3) and (4,-2)
the second one is (2,-3) and (2,4)
Click here to see answer by Earlsdon(4900)

Question 24475: Okay...the directions say to Find Three Ordered Pairs that are solutions of the equation. An example is x=9 and I don't know how to find three ordered pairs of the equation. Please help me and if you can....can you find these ones too!
x=1/2
y=10
y=-5
x=-10
y=7
THANK YOU!
Click here to see answer by smallfry(7)

Question 25222: Which ordered pair is a solution of the system?
x+y =5
3x+4y =14
(1,4),(6,-1)or(3,2)

x+2y =7
3x-7y =8
(-1,4),(5,1)or(3,2)

x-5y =-2
2x-3y =10
(-2,0),(3,2)or(8,2)

Click here to see answer by elima(1433)

Question 25224: I'm not sure what to shade in when I graph inequalities, when I plug in the points (0,0) and they make the statement true, do I shade in the side that has (0,0) as a point??? I'm so confused!!! We have a mid-term coming up...PLEASE HELP!!!
Click here to see answer by elima(1433)

Question 25330: find the slope of a line parallel to the graph of -8x + 6y = 4
Click here to see answer by stanbon(26297)

Question 25329: Write an equation of a line that contains the given point and is parallel to the given line. (-5,-8); y= -3/5x + 2
Click here to see answer by stanbon(26297)

Question 25322: Please help with the equation 4x+y=1!
Click here to see answer by Alwayscheerful(414)

Question 25320: Please help with the equation x=6y!
Click here to see answer by longjonsilver(2297)

Question 25320: Please help with the equation x=6y!
Click here to see answer by elima(1433)

Question 25378: 3x+5y=15
Click here to see answer by Died2Soon(6)

Question 25370: How do I graph 2x-y=4 & 2x-y=6 ? I have tried everything I can think of.
Click here to see answer by Died2Soon(6)

Question 25260: Graphing Equations: Write the equation of a line parallel to y=-3/4x-2, which has a y-intercept of 5.
Click here to see answer by Died2Soon(6)

Question 25282: WHat are the steps to solving linear equations and inequalities.
Click here to see answer by elima(1433)

Question 25387: in 1980 14.6 million mexican lived in the united state that is 6.4% how many other people lived in the united states

Click here to see answer by 10156082(1)

Question 25416: A ramp extends from my porch floor to a point on the ground 50 feet away. The slope of the ramp is -.05. How high is the floor of my porch?
Click here to see answer by queenofit(120)

Question 25418: This is a tough one for me. I am learning how to graph coordiantes but there is a catch. I have to do the following in order to graph it and I am sooo confused! If you could help me I would be ever so grateful!
For a fixed rate, a fixed principle amount, and a fixed compounding cycle, the return is an exponential function of time. Using the formula, A=P(1+r/n)nt, let r=10%, P=1, and n=1 and give the coordinates (t,A) for the points where t=0,1,2,3,4.
Show the coordinates. Graph.
This is what I got and I believe it is wrong:
A=1(1+.10/1)
A=1+.10
A=1.1

Click here to see answer by longjonsilver(2297)

Question 25302: Im a college student at maine and havent used algebra in years and i cant remmeber pretty much anything and now im in productions and operations management and cant remmeber any thing(1000/x)20=(x/2)4.00
Click here to see answer by elima(1433)

Question 25236: We are trying to understand how to coordinate and graph the following problem.
16. y = -x + 3
y = x + 1
The examples given in the book are not clear to me. It ask to estimate the solution of the linear system graphically. Then check the solution algebraically.
Click here to see answer by elima(1433)

Question 25560: how do you graph a function? for example, g(x)=2x-3
thank you
Click here to see answer by rapaljer(3625)

Question 25587: My son is having a difficult time with this slope problem, and I just don't remember enough to help him. Any guidance you could offer would be appreciated very much.
When designing the Fleet Center arena in Boston, architects designed the ramps leading up to the entrances so that circus elephants would be able to walk up the ramps. The maximum grade (or slope) that an elephant will walk on is 13%. Suppose that such a ramp was constructed with a horizontal run of 150 ft. What would be the maximum vertical rise the architects could use?
Click here to see answer by LolaFish(5)

Question 25784: I just want to see if I have the below problem done correctly:
Find the equation of the line with slope m=-7/5 and x-intercept 5
I used the equation y=mx+b
y=(-7/5)x+b
y=-1.4(5)+0
y=-7
Thank you
Click here to see answer by Earlsdon(4900)

Question 25828: The sum of two numbers is 346. The smaller number is 1/3 of the quantity 6 less than the larger number. Find the two numbers.
Click here to see answer by Paul(988)

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