Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 56771: Thank you very much for all you do to help those who struggle!
14. A roof rises 8.5 ft over a horizontal distance of 10.54 ft. What is the slope of the roof to the nearest hundredth?
A) 1.24
B) 0.81
C) 2.15
D) 0.12

Click here to see answer by checkley71(8403)

Question 56769: 11. Write the equation of the line that passes through point (–2, –8) with a slope of 0.
A) x = –2
B) x = –8
C) y = –2
D) y = –8
Thank you very much for all you do to help those who struggle!

Click here to see answer by Nate(3500)

Question 56768: 10. Find the slope and y-intercept.
2x + 5y = –25
no book Thank you very much for all you do to help those who struggle!
Click here to see answer by checkley71(8403)

Question 56774: 16. Are the following lines parallel, perpendicular, or neither?
L1 through (–4, –7) and (1, 3)
L2 through (2, 6) and (4, 10)
A) Parallel
B) Perpendicular
C) Neither
Thanks for all your help!!
Click here to see answer by funmath(2925)

Question 56891: Can someone help me on this problem?
On problem #8, y > 3
The graph showsthe axis of x and y meeting in the middle and a dotted line 3 barss up dotted which is the boundary line for the linear inequality. I need to determine the correct half-plane and complete the graph.
Thanks,
sher
Click here to see answer by stanbon(57940)

Question 56931: can someone please assist me...thanks
GRAPH USING THE INTERCEPT METHOD: 2X-5Y=10
THANKS IS ANDVANCE
Click here to see answer by funmath(2925)

Question 56932: GRAPH 3X+2Y=6
THANKS SO MUCH
Click here to see answer by funmath(2925)

Question 56936: on Pg. 260
Finding Slope Find the slope of the graph of the linear function f
Question#42.
f(2)= -3, f(-2)=5
Click here to see answer by funmath(2925)

Question 56930: can someone please assist me, i'm stumbled...thankS
FIND THE SLOPE OF THE LINE PASSING THROUGH THE POINTS (3,-2) AND (5,-4)
Click here to see answer by funmath(2925)

Question 56930: can someone please assist me, i'm stumbled...thankS
FIND THE SLOPE OF THE LINE PASSING THROUGH THE POINTS (3,-2) AND (5,-4)
Click here to see answer by zakko(1)

Question 56965: Graph the equation
x+6=-5
Click here to see answer by funmath(2925)

Question 57070: L has y-intercept (0, -3) and is parallel to the line with equation y = 2/3X+1.
Write the equation of the line L satisfying the given geometric conditions.
Thank you :)
Click here to see answer by funmath(2925)

Question 57072: Find the slope of any line perpendicular to the line through points (0, 5) and
(-3, -4).
please...
Click here to see answer by funmath(2925)

Question 57071: L has y-intercept (0, 2) and is perpendicular to the line with equation 2x - 3y = 6.
Write the equation of the line L satisfying the given geometric conditions.
Click here to see answer by funmath(2925)

Question 57068: Question:
Create systems of linear equations with each possible number of solutions.
1. Consistent System (or one solution):
2. Inconsistent Graph (or no solutions):
3. Dependent Equation (or infinitely many solutions):
I know an example is required here, but how do you figure it out? I'm not used to making my own problems up, any help would be appreciated.

Click here to see answer by funmath(2925)

Question 57058: please help me solve this equation,
The perimeter of a rectangle is 68cm. the perimeter of a right triangle is 60cm. Find the length of the hypotenuse of the triangle. Hypotenuse is 3y-4.
2x+2y=68
???
Charlie
texbook ISBN 0-669-43394-2 Sec. 3.3(Problem solving using linear equations)
Click here to see answer by venugopalramana(3286)

Question 57082: can someone please assist?
COMPLETE THE ORDERED PAIRS FOR THE EQUATION Y=7X+21
( ,0),(2/7, ),(0, ),(-2/7, )
EACH BRACKET IS MISSING A NUMBER??? i'M CONFUSED..THANKS
Click here to see answer by funmath(2925)

Question 57163: sketch the graph of the function: f(x)=3x+1
Click here to see answer by funmath(2925)

Question 57185: 12d
Click here to see answer by checkley71(8403)

Question 57228: Can someone help me on this problem?
Which of the ordered pairs is a solution for the equation 4x - 2y = 8?
(A) (0,4) (B) (-2,0) (C) (-2, -4) (D) (0, -4)
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 57226: Can someone help me on this problem?
Which of the ordered pairs:
(-3,3), (9,0), (-3, -3), (-23, 8)
are solutions for the equation x + 4y = 9?
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 57233: Can someone help me with this problem?
I need to graph:
y= 2x + 1
I sure would appreciate it the making of the graph.
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 57234: Can someone help me graph this problem?
I would appreciate it so much. I have to send it over the internet and can't use paper.
I need to graph y = 1/2 x.
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 57236: Can someone help me find the slope and y-intercept on:
x = -9
Thank you so much,
Ashley
Click here to see answer by funmath(2925)

Question 57235: Can someone help me find the slope and the y-intercept for
y = 5x -4
Thank you,
Ashley
Click here to see answer by funmath(2925)

Question 57242: Can someone help me out on this problem?
I need to determine which two equations represent perpendicular lines:
(a) y = 5/8 x -3 (b) y = 3x - 5/8 (c) y = -1/3 x + 5/8 (d) y = 1/3 x - 5/8
Thank you, Ashley
Click here to see answer by funmath(2925)

Question 57243: Can someone help me on this problem?
I need to write the equation of the line passing through (6, -10) and (6, -6).
Thanks you very much,
Ashley
Click here to see answer by funmath(2925)

Question 57232: Can someone help me on this problem?
I need to graph y = 3/4 x -4
I sure would appreciate it.
Thanks, Sher
Click here to see answer by funmath(2925)

Question 57224: Can someone help me on this problem?
Which of the ordered pairs:
(3, 1), (0, -4), (-4, 0), (-3, -7)
are solutions for the equation x - y = 4?
thanks,
Sher
Click here to see answer by funmath(2925)

Question 57247: Can someone help me on this problem?
I need to find the slope of the line passing through the points (-5, 5)
and (-3, 5).
Thanks allot,
Lyn
Click here to see answer by rchill(405)

Question 57267: I have a graph that I will try to explain that I need to find the slope of the graphed line.
I have a graph where x-axis and y-axis meet in the middle. I have a line that is vertical left of the y line which is 4 rows over . What would that slope be?
I appreciate any help possible on this.
Thanks, Lisa
Click here to see answer by BGluvsmath(64)

Question 57262: I need some help on finding the slope of the graphed line I will described the best I can for you.
I have a graph where the x-axis meets the y-axis.
I have a line like this < ________________> 3 bars up from the middle.
What would the slope be?
Thanks for the help, Lisa
Click here to see answer by funmath(2925)

Question 57275: Can someone help me graph this problem. I have to put it through on the computer and not on paper.
I need to graph using the intercept method: 2x + y = 4
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 57274: Can someone help me on this problem? I put it through last night but I typed it in wrong.
Which of the ordered pairs (-3, 3), (9,0), (-3, -3), (-23, 8)
are solutions for the equation x + 4y = 9?
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 57253: Can someone help me graph this problem? I can't use paper, but have to do it on the computer to send to my teacher and don't know how to do it.
I need to graph using the intercept method: 2x + y = 4
Thanks for the help. I sure do appreciate it.
Lyn
Click here to see answer by funmath(2925)

Question 57335: Solve system of linear equation express in ordered pair (x,y)if possible
x - y =4
2x + y =5
I have x= 0.35 I don't think this is correct.
Can you help me please? These are confusing me.
Thanks, dnn
Click here to see answer by funmath(2925)

Question 57334: Solve the following system of linear equation. Answer in ordered pair if possible (x,y)
y = 2x + 1
x + y =4
I think I did it corectly my final answer is x= -1
Please show steps so I can see if I did it right.
Thankyou,
dnn
Click here to see answer by Nate(3500)

Question 55861: i dont know what the pattern is for number 46 or 47 and im so confused and my homeworks due tomorrow
Click here to see answer by michelle_lamb(2)

Question 57387: Please help I am stumped express answer as ordered pair x,y, if possible to the following linear equation
2x - 4y+8
x - 2y=4
Thanks,
dnn

Click here to see answer by stanbon(57940)

Question 57390: I typed the equation wrong!!!!!!!!!
This is what it should have been
2x -4y =8
x - 2y = 4
thanks,
dnn
Click here to see answer by funmath(2925)

Question 57454: Tom Pepperoni is the manager of one of the largest Pizza Pie franchises in the country. in working out her summer staffing need, she is trying to determine the best mix of experienced and inexperienced workers. Inexperienced workers are paid $5.50 per hour, compared to $8.00 per hour for experienced workers. However, inexperienced workers are only 75% as productive as experienced workers.
Based on many years of experience running fast-food outlets, Ms. Pepperoni has come to the conclusion that there must be at least one experienced worker for every two inexperienced workers for the operation to run smoothly. Inexperienced workers are ony 75% as productive as experienced workers. She estimates that she needs, on average, the equivalent productivity of 10 experienced workers at all times in order to handle the workload during the course of the week. In addition, she has made a commitment to the community to hire at least 4 neighborhood teenagers with no previous work experience.
Decision Variables are : E = experienced workers I = inexperienced workers
W = wages
Equation to compute her average total hourly wages: (E(8) + I(5.50))divided by E+I = W
Objective Function - (E(8) + I(5.50))divided by E+I = W
Three restrictions: 1) Must have at least 4 inexperienced workers
2) Must have at least 1 experienced worker for every 2 inexperienced worker.
3) Must have the workforce of at least 10 experienced workers.
Help - Write a mathematical expression representing each of these restrictions.
Help - Write mathematical constaints to graph

Click here to see answer by stanbon(57940)

Question 56979: At what point does the line (x+4)/2 = (y-6)/-1 = (z+2)/4 meet the co-ordinate planes?
thank you in advance...
Click here to see answer by venugopalramana(3286)

Question 57472: Graph:
y= -2/3x +4 by graphing 3 points.
Thank you =)
Click here to see answer by funmath(2925)

Question 56963: Please help me solve this equation

Click here to see answer by ankor@dixie-net.com(15745)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445