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

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Question 550933: my instructions are to write an equation that is parallel to the given line passes through the given point Here is the problem- 3x+4y=8; (4,-3) how would i solve this
Click here to see answer by scott8148(6628)

Question 551047: y=f(x)=5^x
Finding the correct graph

Click here to see answer by Alan3354(69443)

Question 551050: graph of y=2x +4. Then graph the equation to check your answer y=3x-9
Click here to see answer by oberobic(2304)

Question 551093: Graph the system x = 7 - 2y
y = 3x
and determine the solution set.
Click here to see answer by rfer(16322)

Question 551115: Which two lines are parallel?
A. 5y = �3x � 5
B. 5y = �5 � 3x
C. 3y � 2x = �1
Is the line through points P(�7, 2) and Q(7, �6) parallel to the line through points R(�1, �5) and S(�3, �1)? Explain.
Click here to see answer by Alan3354(69443)

Question 551116: Plans for a bridge are drawn on a coordinate grid. One girder of the bridge lies on the line y = �9x � 9. A perpendicular brace passes through the point (�1, 7). Write an equation of the line that contains the brace.
A. y � 1 = �1/9(x + 7)
B. x � 7 = �9(y + 1)
C. y � 7 = 1/9( x + 1)
D. y � 7 = �9(x + 1)
Write an equation in point-slope form of the line through point J(4, 1) with slope �49(x + 1)
Click here to see answer by nyc_function(2741)

Question 551235: I need help calculating the slope, x-intercept, and y-intercept of 4.2x +3.8y = 1.9. Thanks.
Click here to see answer by MsRedz123(24)

Question 551233: how do you solve for the unknown of x/3 -7/8 = 2/5(x + 15/4) any help would be greatly appreciated.
Click here to see answer by bucky(2189)

Question 551279: The Line Parallel To y=-2x+4 Through (-4,3)
Click here to see answer by fcabanski(1391)

Question 551279: The Line Parallel To y=-2x+4 Through (-4,3)
Click here to see answer by MathTherapy(10552)

Question 551310: Please help me solve this equation: (5,7)and(5,-3)
Click here to see answer by richard1234(7193)

Question 551277: The Parallel Line To y=7x+4 Through (-8,-3)
Click here to see answer by nerdybill(7384)

Question 551377: 2000 students in the whole school and only 55 of 90 students are buying yearbooks approximately how many books should be orderd?
Click here to see answer by Theo(13342)

Question 551420: what does reflection of in the origin mean
Click here to see answer by KMST(5328)

Question 551618: Find the slope of the line that contains(7,-9) and(-8,0) .
Click here to see answer by Maths68(1474)

Question 551617: Find the slope of the line described by �3x + 5y = �30.
Click here to see answer by Maths68(1474)

Question 551624: Find the slope of the line(2,5) and (4,4).

Click here to see answer by Maths68(1474)

Question 551623: Find the slope of the line(3,3) and (7,1)

Click here to see answer by Maths68(1474)

Question 551620: Find the slope of the line that contains(5,-10) and(-1,-5)
Click here to see answer by Maths68(1474)

Question 551615: Find the slope of the line described by 4x + 6y = �12.
Click here to see answer by rfer(16322)

Question 551667: Question: Is the equation x+1/y=6 a linear equation, and if yes, how can it be put into standard form?
Tentative answer: Yes, it is a linear equation?
Attempt to put into standard (Ax+By=C)form:
x+1/y=6
(y/1*x) + (y/1*1/y) = y/1*6
x*y + 1 = 6y
x*y - 6y = -1
y*(x-6) = -1
At this point my understanding breaks down and I do not know how to get this equation into Ax+By=C form. Can you please enlighten me? Thank you so much.
Click here to see answer by mananth(16946)

Question 551978: The following is a table of theyears of experience of university teachers and their corresponding salary in thousands of dollars.
0-----58,000
5-----68,000
10----78,000
a. give the linear function S(t) that gives the annual salary in thousands of dollars for t years of experience.
b.Predict the average salary for a teacher with 15 years experience.
(I believe it is 82,000, but don't know how to show the work)
c. Find the years of experience for a teacher that is paid $84,000.
(I believe it is 12.5 but don't know how to show the work)

Click here to see answer by richard1234(7193)

Question 552246: what are some disadvantages to finding the y-intercept from the graph?
Click here to see answer by richard1234(7193)

Question 552296: Hi tutor,
I need help on this problem. It is asking me to graph the these lines and highlight the positive slope lines pink and the negative blue. So how would you graph y=3x+5 or y=0.5x+3. Please help me with this because it is due tomorrow. thanks
Click here to see answer by AnlytcPhil(1806)

Question 552413: I am trying to help my daughter with her homework from 1300 miles away please help! The problem is find the equation of a line in slope intercept form with an undefined slope and passes though (3,-2). Thank you so much, it's been a long time since I've done this stuff.
Click here to see answer by stanbon(75887)

Question 552327: multiply (2/3)(4/5)
Click here to see answer by 10301650(32)

Question 552516: Can you please solve each equation by graphing. If it is necessary then round to the nearest hundredth.
1. -x3 + 3x + 4 = 0
2. �x3 + 2x2 + 1 = 0
Click here to see answer by stanbon(75887)

Question 552505: (-3)/(2) <=== Graph that solution PLEASE
Click here to see answer by Alan3354(69443)

Question 552566: Evaluate 3x - 2y, if x=3 and y=4
what would be the answer?
1 ? 5 ? 17 ? 25
they dont inculde a graph nor plot.
this is middle school math.(6 grade)
Click here to see answer by Theo(13342)

Question 552665: how do you make a table of solutions and graph this equation y = x
Click here to see answer by fcabanski(1391)

Question 552872: Write the slope-intercept equation for the line that passes through (-2, 3) and is perpendicular to 2x � 9y = -12 Please show all of your work
I have tried to answer this and I can tell by looking at what I did that I am no where near correct.
Click here to see answer by Alan3354(69443)

Question 552875: The instructions say Tell whether the slope of the line that models each linear relationship is positive, negative, zero, or undefined. Then find the slope. The question id The cost of a pair of jeans is $22.50 for one pair and $67.50 for 3 pairs. Can anyone help?
Click here to see answer by mananth(16946)

Question 553116: How would you graph 2x-y=-2? Or get it into y=mx+b?
Click here to see answer by jim_thompson5910(35256)

Question 553110: Solve:

Include a sketch to support answer.
I isolated x to get and but I don't understand how x is greater than or equal to and less than or equal to . I also don't know how to do the sketch.
Click here to see answer by solver91311(24713)

Question 553128: How would you graph 2x + 3y = 9, and solve it into y=mx=b?
Click here to see answer by jim_thompson5910(35256)

Question 553159: They want me to draw a rectangle with 22 square units inside it--that's the problem, but it seems like a trick because you cannot do it. it doesn't even out. Pls help!
Click here to see answer by nerdybill(7384)

Question 553213: What is the graph and solution for 3n-7>n+1 or 4n-5<3n-3. Thank you.
Click here to see answer by jim_thompson5910(35256)

Question 553232: Hi! Could you please help me solve this multi-step inequalitie: Thanks again i keep trying but i think im getting it wrong!
Click here to see answer by mananth(16946)

Question 553597: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y = mx+b.

(2,9); x +3y = 4 The equation of the line is y= _____
Simplfy your answer. Use intergers for any numbers in the expression.
Click here to see answer by mananth(16946)

Question 553682: how do i do.... write an equation of the lin in Plot-slope form that passes through the givin point and has the givin slope,, then convert the point slope equation into Slope- Intercept form
Click here to see answer by mananth(16946)

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