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

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Question 367062: many elevators have a capacity of 1000 kg.suppose that children(each weighing 35 kg)and adults(each weighing 80 kg) are on elevator.graph a system of linear inequalities that indicates when the elevator is overloaded
Click here to see answer by Theo(13342) About Me 

Question 367168: what does the symbol > with a line under it mean?
Click here to see answer by edjones(8007) About Me 
Question 367168: what does the symbol > with a line under it mean?
Click here to see answer by Edwin McCravy(20054) About Me 
Question 367168: what does the symbol > with a line under it mean?
Click here to see answer by tutorcecilia(2152) About Me 

Question 367297: Perpendicular to the graph of y = 1/3 x + 7; y-intercept (0,5)
Click here to see answer by nerdybill(7384) About Me 

Question 367333: Hello! I have 2 points that I need to write in slope intercept form (y=mx+b).
The points are:
(-1,-9) and (1,1)
What is the answer?

Click here to see answer by Alan3354(69443) About Me 

Question 367354: write the slope intercept equation for the line containing the giving pair of points (-2,0) and (0,3)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 367371: Graph the equation: plot atleast 5 points for each equation.
x - 2y=6

Click here to see answer by stanbon(75887) About Me 

Question 367468: Find a equation of the line having the given slope and containing the point.
m=2/3,(7,-8)

Click here to see answer by Fombitz(32388) About Me 

Question 367464: Find the slope and Y intercept of lines
9-1/4y=2x

Click here to see answer by stanbon(75887) About Me 
Question 367464: Find the slope and Y intercept of lines
9-1/4y=2x

Click here to see answer by solver91311(24713) About Me 

Question 367465: Find slope if it exists
(7,1) (9,-7)
y2-y1/x2-x1 ???

Click here to see answer by edjones(8007) About Me 

Question 367470: Find the equation of the line containing the given pair of points..
(-1,-5)(-4,-9)

Click here to see answer by Earlsdon(6294) About Me 

Question 367459: Does the quadratic function f(x) = -(x – 9)^2 + 7 have a maximum or minimum value? What is it?
Click here to see answer by scott8148(6628) About Me 

Question 367482: Find equation of the lines containing the given pair of points..
m=2/3(5,-7)

Click here to see answer by mananth(16946) About Me 

Question 367665: y=4x+12,(0,-3)
Click here to see answer by Fombitz(32388) About Me 

Question 367814: f(x)= radical x+3
Click here to see answer by Fombitz(32388) About Me 

Question 367767: x/5+2
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Question 367859: please graph this: +y=-7x+
Click here to see answer by Fombitz(32388) About Me 
Question 367859: please graph this: +y=-7x+
Click here to see answer by neatmath(302) About Me 

Question 367852: f(x) : 3x2 - 4x / x+1 = -ln (x^2-1)
Click here to see answer by Fombitz(32388) About Me 

Question 367874: 3x + 2y = 6

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Question 367872: Please graph: +x-y=5+
Click here to see answer by Fombitz(32388) About Me 

Question 367881: Please help me with this problem: is y=3+2x a equation with a line that has a y-intercept of 3 and a slope of 2?
Click here to see answer by Fombitz(32388) About Me 

Question 367894: solve it if y = 0 f(x) : 3x^2 - 4x / x+1 = -ln (x^2-1)
Click here to see answer by Fombitz(32388) About Me 

Question 367916: Find the equation of a line containing points (2,6) and (8,9).
Click here to see answer by ewatrrr(24785) About Me 

Question 367962: 1. Describe the graph of y= -x² in terms of the graph of y= x²
Click here to see answer by Fombitz(32388) About Me 

Question 367941: Graph the quadratic function f%28x%29=-7x%5E2-10x%2B5. State the ordered pairs representing the x-intercept(s), y-intercept (if any), and the vertex of the parabola. If the parabola has a maximum or minimum, give its coordinates.
So far I have the following:
To find the y-intercept set x=0 and solve for f(x)
f%280%29=0%5E2-10%280%29%2B5
f%280%29=0-0%2B5
f%280%29=5
y-intercept is at (0,5)
To find the x-intercept set x=0 and solve for x
0=-7x%5E2-10x%2B5
7x%5E2%2B10x-5=0
7x%5E2%2B10x=5
7x%5E2=5-10x%2F7
and then I get stuck...is this even right to this point? How do I finish this problem and how do I graph it? Also, how do I know if the parabola has a maximum or minimum and give its coordinates?

Click here to see answer by solver91311(24713) About Me 

Question 368027: how do you graph y=x+3
Click here to see answer by checkley77(12844) About Me 

Question 368072: 3y-8>22
Click here to see answer by robertb(5830) About Me 

Question 368089: Convert the inequality x-y>7 to slope-intercept form.
I have no clue what I am doing here, and I really need an answer soon. Please help me! I'd really appreciate it! Thank you :)

Click here to see answer by stanbon(75887) About Me 

Question 368099: i have question. how do i graph something when 4=0-6. I was wondering if this is a negative slope. thanks by stephen.
Click here to see answer by stanbon(75887) About Me 

Question 368108: solve for m. 0.6+3=2m+0.2

i dont know where to start

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Question 368064: is the number a solution of 6x-3>10
Click here to see answer by nyc_function(2741) About Me 

Question 368163: Write an equation of the line containing the given point and parrallel to the given line.
(4,8);x+7y=2

Click here to see answer by Fombitz(32388) About Me 

Question 368166: Are the graphs of the two lines parallel.
y+5=3x
5x-y=-5

Click here to see answer by Fombitz(32388) About Me 

Question 368165: Find the intercepts and then use them to graph the equation.
2x+5y=10

Click here to see answer by stanbon(75887) About Me 

Question 368177: (-14,-12)(-18,-16)
just want to double check my answer for finding the slope. i came up with m=1

Click here to see answer by jim_thompson5910(35256) About Me 
Question 368177: (-14,-12)(-18,-16)
just want to double check my answer for finding the slope. i came up with m=1

Click here to see answer by Fombitz(32388) About Me 

Question 368182: y=-3 Graph the equation by plotting the points
Click here to see answer by Fombitz(32388) About Me 

Question 368178: f(x)=x^2-x-2 graph the function?
Click here to see answer by Fombitz(32388) About Me 

Question 368217: Please help me solve y < 2x +2 and graph each inequality.
Thank you

Click here to see answer by jim_thompson5910(35256) About Me 

Question 368180: m=-8(6,0) Find the equation?
Click here to see answer by robertb(5830) About Me 

Question 368206: y+5=3x
5x-y=-5
Are the two lines parallel?

Click here to see answer by robertb(5830) About Me 

Question 368241: Graph this function: 4y - 2x = 0
Click here to see answer by mananth(16946) About Me 

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