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

Tutors Answer Your Questions about Graphs (FREE)

Question 30575: Find equation, in standard form, of the line perpendicular to 3x - 6y =9 and passing through (-2, -1)
Click here to see answer by Cintchr(481)

Question 30067: x+y= 8
x-y= 10
Click here to see answer by checkley71(8403)

Question 30569: Find the equation in standard form, of the line perpendicular to 3x - 6y = 9 and passing through (-2, -1)
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30591: Solve the system of equations using the addition (elimination) method.
3x � 11y = 9
-9x + 33y = 18

Click here to see answer by Nate(3500)

Question 30590: Solve the system of equations using the substitution method.
3x + y = 2
2x � y = 3
This is what I cam up with, but It doesn't seem correct.
3x + y =2
Isolate the y by sub. 3x from both sides
3x-3x + y =3x +2
substitute 3x + 2 for y
2x - 3x + 2=3
This is where I get lost, not sure if this is even correct

Click here to see answer by Nate(3500)

Question 30589: Solve the system of equations using the addition (elimination) method.
9x + 2y = 2
3x + 5y = 5
I am failing this class I have never had algebra before. please help
Click here to see answer by mukhopadhyay(490)

Question 30603:
Suppose the ordered pairs in this exercise are for the same direct variation. They are asking me to find the missing value.
I actually thought that the missing variable was 5.

Click here to see answer by Cintchr(481)

Question 30604:
I'm asking how to rewrite this equationin slope-intercept form. Then graph this equation.
Click here to see answer by Cintchr(481)

Question 30066: x+y= 8 x-y= 10
Click here to see answer by checkley71(8403)

Question 30607:
Find the x- and y-intercept of this equation.
Click here to see answer by Nate(3500)

Question 30605:
They are asking me to write and equation of a line through the given point with the given slope using the Ax+By=C form.
Click here to see answer by Nate(3500)

Question 30620: what is the equation of a line that passes through
(-3,0) and (0,3)
Click here to see answer by Nate(3500)

Question 30629: Solve the inequality: 5<1-3x (less than or equall to) 10
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30627: (1)Find the Equation of a line through (0,10) which is perpendicular to the line
-x-15y=10.

(2)The line segments with endpoints (0,5) and (5,0) is the diameter of a circle. write the eguation of this circle in standard form.
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30639: (1)solve the inequality: 5<1-3x(lesser than or equal to 10
(2) slove for y:6y^2+y=12

Click here to see answer by sdmmadam@yahoo.com(530)

Question 30648:
I'm asking to write an equation of a line that contains th given point and is parallel to the given line.
Click here to see answer by Fermat(136)

Question 30645: (-6,-2);slope= -1/4
They are asking me to write an equation for a line through the given point with the given slope using the Ax+By=C form.
Click here to see answer by Paul(988)

Question 30654: (8,-5);-5x-4y=3
Write an equation of a line that contains the given point and is parallel to the given line.
Click here to see answer by Cintchr(481)

Question 30657: find the slope. How do you find a slope
question find the slope for a line that passes through (0,0) and (1,1)
Click here to see answer by checkley71(8403)

Question 30316: y=2x+1
Click here to see answer by oscar91(1)

Question 30711: How can I resolve this can of algebra inequalities example: X over 3 - 6 < -9

Thank's
Click here to see answer by Nate(3500)

Question 30726: (1)Write the slope- intercept form of the equation of the line through (-1,2)that is perpendicular to the line 3x+y=4.

(2) Find the equation of a line through (-2,0) which is perpendicular to the line -5x-15y=11.

(3) find the slope of the line which is parallel to the line x=4/5y +7/4
Click here to see answer by Nate(3500)

Question 30661: write below equation in standard form using only intergers
y=4x/5 + 2/3
Click here to see answer by checkley71(8403)

Question 30660: which of the points following the ineqaulity satifes the below
y<=-x+6
(2,0), (-3,9), (-4,12)
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30757: A recent survey indicate that 2 out of every 5 people watch channe 11 news at 6.
Let P represent the total number of people who watch any news at 6. Write an equation for T, the number of people who watch channel 11 news at 6.
Click here to see answer by mbarugel(146)

Question 30796: Find the slope 2x+y=6 y=-2x+6 (y=mx+b) t/f, m is -2.
Click here to see answer by troyapplehelen(46)

Question 30772: each number below is a solution to inequality 2x+3>7 except
0
10
3
4
5
Click here to see answer by troyapplehelen(46)

Question 30800: how do you change x=3-3y to a y= problem?
Click here to see answer by troyapplehelen(46)

Question 30769: what slope of the line passing through points a(5,4) and b(0,3)?
Click here to see answer by troyapplehelen(46)

Question 30658: find the equation of the line though (1,4) and slope 1/4
Click here to see answer by troyapplehelen(46)

Question 30926: etimating roots
-x�+3x-2=0
Click here to see answer by acerX(62)

Question 30938: In the problem...
The Tadashi corporation manufactures a large speaker and a small speaker for phone headsets. The speakers are used on the Tadashi 200 and the Tadashi 500 phone systems. The table gives the speaker requirement for each phone system.
________________________________________________________________________________
speakers on T. 200---Large Sp.2----small Sp.-- 2
speakers on T. 500 ---large sp. 2----small sp. 4
total available sp. ea. week--large sp.900 ----small sp. 1000
________________________________________________________________________________
I am to write a system of linear inequalities for a chart.
my answer is 2x+3y=900
2x+4y=1000
I am suppose to graph the system but not sure how to?
also, I need to list 3 possible solutions. Plot them on a graph. Show my work.
Not sure how to do that either? Can you give me some help on how to do the problem? thanks.
Click here to see answer by acerX(62)

Question 31008: It is a worksheet and the problem is I am not sure how to graph this
y=x-5
y=3x-7
Click here to see answer by acerX(62)

Question 31050: evaluate the function at the values indicated
f(x)=-2/3x-6;find f(-9)
Click here to see answer by acerX(62)

Question 31049: slope= -1/3,through (-6,2)
find the equation of the line with the given properties
Click here to see answer by acerX(62)

Question 31048: Determine if the following two lines are parallel.
y=4/9x+6
4x=9y+2
Click here to see answer by acerX(62)

Question 31139: x -2 -1 0 1 2
y .25 .5 1 2 4
Given the table above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph, and also the domain and range of the entire function.
I am lost, this stuff is going right over my head and I dont know where to begin.
Click here to see answer by mbarugel(146)

Question 31147: could someone please help me with this problem?
Solve the following system of equations by graphing:
y=x^2-4 and y=x-2
???????
Click here to see answer by mukhopadhyay(490)

Question 31261: Graphing Systems of Linear Inequalities
i have a question...i am graphing a system of linear equalities, i am supposed to graph the lines y>=0 and x>=0, i know that these line are perfectly verticle and perfectly horizontal. I just dont know how to figure out which side to shade on
Click here to see answer by longjonsilver(2297)

Question 31238: i need help with finding an equation for a graph i have, but im not sure how to post a picture of the graph, is it possible?
Click here to see answer by troyapplehelen(46)

Question 31273: Heya, im working on problem solving with systems of equations. i need help turning this word problem into a system of inequalities, so that i can graph them. heres the problem:
--You are recruiting students for a decorating committee for the Junior/Senior Prom. the committee can have 7 to 10 members. there must be more seniors then juniors on the committee.--
Im having a hard time even starting to convert this to a linear equality. Could you explain the steps for finding this out? Thanx
G

Click here to see answer by mukhopadhyay(490)

Question 31291: I'm trying to graph an inequality:
x<-6
-
I can't type in the "less than or equal to: symbol

Click here to see answer by Earlsdon(6294)

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