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

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Question 543092: (-2,3),y=-1/2x-4
Click here to see answer by solver91311(24713)

Question 543151: how do you find slope for 5y=160+9x and 5x=90-9y
Click here to see answer by jpg7n16(66)

Question 543364: Determine whether the ordered pair is a solution of the given linear equation.
2x + 5y = -8; (-2,-2)
Click here to see answer by umnikmo(75)

Question 543545: Hi, there is this question that had been stumping me for a while.
You can become a member of a gym for $400 a year, and pay $5 every time you go.
Or, you can not be a member and pay $4 for a workout and $10 to use equipment. How many times should you go to the gym to make being a member worth it?
Click here to see answer by josmiceli(19441)

Question 543619: what would 30.2 miles be as a fraction?
Click here to see answer by josmiceli(19441)

Question 543584: Given the linear equation y= 3/4x-2 , find the y-coordinates of the points (-8, ), (-4, ), and (4, ). Plot those points and graph the linear equation.
i took 3/4 and times it by ( -8) and - the 2 and got -8 i didnt know if i was doing it correctly and if so how do i plot them on a graph because i dont get where x is thanks for helping me so much
Click here to see answer by scott8148(6628)

Question 543703: what is the slope of a line passing through the points (24,3)and (1,5)?
Click here to see answer by stanbon(75887)

Question 543336: Your company may wish to release a new e-reader device. Based on data collected from various sources, your company has come up with the following regression equation for the profit of the new e-reader:
Profit = $0.15 � number of e-readers sold � $28
Or, assuming x = the number of e-readers sold, this would be the same regression equation:
Profit = 0.15x � 28
In this case, the values are given in thousands (i.e., the cost of making an individual e-reader will be $150 [0.15 � 1,000], with $28,000 [28 * 1,000] in constant charges).
I need to graph this also.
I have been working on this for days but I am just getting more and more confused. Thank you
Click here to see answer by ankor@dixie-net.com(22740)

Question 543880: Give the equation of a line perpendicular to y=2x+4 that passes through the point (-8,3) and identify the point of intersection as an ordered pair.
I really need this for my final exam and i have to graph it so if i can get the explanation and answer it would be lovely thank you very much.
Click here to see answer by MsRedz123(24)

Question 544297: what is the linear equation in slope-itercept form for through (0,2) and (-2, 3)

Click here to see answer by friesr(113)

Question 544304: 1. Write the point-slope form of the equation passing through (5, -1) with a slope of 6.
Click here to see answer by friesr(113)

Question 544363: Find A and B so that the graph of Ax+By=-26 contains the points (4,-5) and (1,-11)
Click here to see answer by mananth(16946)

Question 544379: WRITE THE EQUATION in slope intercept form of the line that is perpendicular to y=-5x+2 and passes through 10, 8
Click here to see answer by mananth(16946)

Question 544391: how do you graph: y=1/2x +3
Click here to see answer by jim_thompson5910(35256)

Question 544395: Find an equation of the line that has a y-intercept of 5 and is perpendicular to the graph of the line 4x + 3y =8
Click here to see answer by ShaniaQ(5)

Question 544498: I have test corrections for homework. On the test, it says -
Write an equation of the line, in point-slope form, that is perpendicular to 3x+y=7 and passes through (-6,2).
I have done this on the test -
3x+y=7 (-3x on both sides)
y=-3x-7 (plug in coordinates)
y-2=-3(x+6)
My teacher said that the -3 part is wrong, yet I don't see why.

Please Reply Soon
Student in Need
Click here to see answer by lwsshak3(11628)

Question 544516: Please help me solve this equation:

I can figure it out when I have to solve for an x when the y is given but don't understand when there is two y's. Please help and thanks!
Click here to see answer by mananth(16946)

Question 544536: Find the x- and y-intercepts of the graph. Do not graph the equation.
y = x^2+ 3x - 28
Click here to see answer by mananth(16946)

Question 544581: 5x+7= 3x-13
Click here to see answer by JBarnum(2146)

Question 544086: how do you slove
x-y/8 = 3/4
Click here to see answer by JBarnum(2146)

Question 544610: Find three solutions of y-3x=2 (-1,0,1)
Click here to see answer by friesr(113)

Question 544625: Please help me solve this: Find the equation of the line perpendicular to -4y-5=3x through the point (6,5) and write the equation in standard form.
Click here to see answer by JBarnum(2146)

Question 544554: Graph: x^2 - 4x + y^2 + 6y + 4 = 0
Click here to see answer by KMST(5328)

Question 544256: Write an equation of the line that is parallel to the given line
y = x + 3 and the given point (5,0).
-----------------------------------------------------------------------

Write an equation of the line that is parallel to the given line
y = 2x + 3 and the given point (-4,1).

Click here to see answer by SwiftAlbatross(13)

Question 544770: Find the equation of the line containing the following points (7,-11)(3,5). Make sure the equation is in slope-intercept form.
thanks

Click here to see answer by ankor@dixie-net.com(22740)

Question 544839: Find the slope m of the line that passes through the points (�3, 1) and (5, 6).
Click here to see answer by josmiceli(19441)

Question 544841: What is the slope m and y-intercept point of the line y = 2x + 1?
slope m = 2 and y-intercept at (0, 1)
slope m = 1 and y-intercept at (2, 0)
slope m = 1 and y-intercept at (0, 2)
slope m = 2 and y-intercept at (1, 0)
WOULD SOMEONE PLEASE HELP ME OUT WITH ANY OF THESE QUESTIONS...thanks!!!

5. Given the function f(x) = x + 3x + 4 , find the value of f(�1)
6. For f(x) = , find f(-1)

7. A function is a relation in which two different ordered pairs have the same first coordinate. TRUE OR FALSE?

9. Find the ordered pair solution to the following system of equations (Use any method):
5x + 2y = 0
x - 3y = 0

10. Find the ordered pair solution to the following system of equations (Use any method):
3x � y = 5
2x + 5y = -8

11. Twice one number minus a second number is five. Twice the second number plus the first number is eight. Find the numbers.

12. Find the choice below which gives a first step in solving the given system of equations by the addition method.
2x - 3y = 7
x - 4y = 2
4.

13. If the system of equations given below is solved using the substitution method, what is the equation that results from solving the second equation for y, and substituting into the first equation?
3x - 2y = 7
x - y = 5

14. A system of parallel lines is called a(n) _______________ system.

15. How many solutions does the following system of equations have?
y = -3x + 8
y = -3x + 9

Click here to see answer by oberobic(2304)

Question 544909: The value of stock ABC Corporation has been increasing by the same fixed dollar amount each year. the pattern is expected to continue. Let 1980 be the base year corresponding to X=0, with x=1,2,3....corresponding to later years. ABC stock was selling at $37.50 in 1985, and $45.00 in 1988. If y represents the price of ABC stock, find the equation y=mx+b that relates x and y, and predict the price in the year 2000.
Click here to see answer by stanbon(75887)

Question 544996: What is the equation of the line passing through (-3, 8) that is perpendicular to the line y = 7?
thanks so much
Click here to see answer by cira554(7)

Question 545001: What is the slope-intercept form of a line passing through (-3, -5) that is perpendicular to the line x + 3y = 6?
not sure what I am doing wrong it is not working for me thanks bunches
Click here to see answer by Edwin McCravy(20055)

Question 545020: what is the slope of a line parallel to the graph of y=1/2x+2.3

Click here to see answer by Alan3354(69443)

Question 545024: How can 3/4 + q =1? Please include step by step solutions.
Click here to see answer by josmiceli(19441)

Question 545028: find the y-intercept of the line: y=5x-1

Click here to see answer by oberobic(2304)

Question 545007: Please help me solve this: Write the equation of the graph passing through the points (-4,5) and (-2,3).
Click here to see answer by jim_thompson5910(35256)

Question 544686: What is the property of equality of If 3(x-5/3)=1, then 3x-5=1
Click here to see answer by jim_thompson5910(35256)

Question 544025: SOLVE -4z= -3(6-2z) + 3z
Click here to see answer by jim_thompson5910(35256)

Question 545111: Graph the line containing the given pair of points and find the slope (5,0) and (-3,-4)
Click here to see answer by saifoo.khan(162)

Question 545114: x+2y=0,2x-6y=5 solve each system by the addition method. Thanks!!
Click here to see answer by saifoo.khan(162)

Question 545114: x+2y=0,2x-6y=5 solve each system by the addition method. Thanks!!
Click here to see answer by MathTherapy(10552)

Question 545125: decide whether the pair of lines is parallel,perpendicular, or neither.
4x+5y=6
4x+5y=3
Click here to see answer by saifoo.khan(162)

Question 545128: Find the slope of a line perpendicular to a line passing through (5,6) and (-9,10)
Click here to see answer by saifoo.khan(162)

Question 545138: Write the slope intercept form of the equation of the line that passes through the point (7, 14), and is parallel
to - 2x + 3y = 4 .
Click here to see answer by mananth(16946)

Question 545269: give the equation for a line with a slope of 5 that passes through the point (4,1)
Click here to see answer by nerdybill(7384)

Question 545257: I am lost!!! Can you explain step by step how to solve this problem? Write an equation of the line containing the given point and parellal to the given line.
(-2,6); 9x = 8y + 5
I am totally confused, and even viewing examples, I just cannot understand how the final answer is arrived at.
Thank you so much in advance.
Click here to see answer by Earlsdon(6294)

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, 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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, 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