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

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Question 935974: The graph of the equation 2x+6y=4 passes through the point(x,-2). What is the value of x?
Click here to see answer by josgarithmetic(39617)

Question 935974: The graph of the equation 2x+6y=4 passes through the point(x,-2). What is the value of x?
Click here to see answer by MathLover1(20849)

Question 936021: Guy and Jim work at a furniture store. Guy is paid $185 per week plus 3% of his total sales in dollars,x, which can be represented by g(x)=185+0.03x. Jim is paid $275 per week plus 2.5% of his total sales in dollars,x, which can be represented by f(x)=275+0.025x. Determine the value of x,in dollars, that will make their weekly pay the same.
Click here to see answer by reviewermath(1029)

Question 936002: If L is the line through the point (- 3, 5) having a slope of , complete the equation of L .
y =

A.) (2/3)x + 7

B.)(2/3)x + (47/9)

C.)(2/3)x - (1/3)
Click here to see answer by Alan3354(69443)

Question 936001: The difference between two numbers is 7. Six times the smaller plus the larger is 77. Find the numbers.
Click here to see answer by TimothyLamb(4379)

Question 936059: SYSTEM OF LINEAR INEQUALITIES
SOLVE FOR X

4x+5>(>that sign has a line under it)2(x+1)

Click here to see answer by oscargut(2103)

Question 935777: The graph of a linear function that passes through the point (-2,k) and has y- intercept -3, is decreasing if:
a) k < 2/3
b) k > 3/2
c) k > 0
d) k < -3
e) k < or = -3

Click here to see answer by oscargut(2103)

Question 936081: Goods cost a merchant $72. At what price should he mark them so that he may sell them at a discount of 10% from his marked price and still make a profit of 20% on the selling price?
Click here to see answer by stanbon(75887)

Question 936086: A woman is paid $20 for each day she works and forfeits $5 for each day she is idle. At the end of 25 days she nets $450. How many days did she work?
Click here to see answer by pricerk(1)

Question 936090: An excellent solution for cleaning grease stains from cloth or leather consists of the following: Carbon tetreachloride 80% (by volume), ligroin 16%, and amyl alcohol 4%. How many pints of each should be taken to make up 75 pints of solution?
Click here to see answer by jim_thompson5910(35256)

Question 936094: Lubricating oil worth 28 cents/quart is to be mixed with oil worth 33 cents/quart to make up 45 quarts of a mixture to sell at 30 cents/quart. What volume of each grade should be taken?
Click here to see answer by josgarithmetic(39617)

Question 936256: Which of the following statements is true for the line 5x-2y-12=0
a) The slope is 2/5 and the y-itercept is 12
b) The slope is -5 and the y-itercept is 6
c) The slope is 5 and the y-itercept is -12
d) The slope is 5/2 and the y-itercept is -6
Click here to see answer by MathLover1(20849)

Question 936276: what is an equation of a line that is perpendicular to y=3/5x-2 and passed through point(5,-7)
Click here to see answer by stanbon(75887)

Question 936420: graph the linear system and estimate the solution then check the solution algebraically.
x=2y=-6
-6x-2y=-14
Click here to see answer by Alan3354(69443)

Question 936544: Consider the point P = (2, 8) and the line L, given by the equation 6x - 3y = 15.
A. Write an equation in slope-intercept of the line passing through P and parallel to line L.
B. Write an equation in slope-intercept of the line passing through P and perpendicular to line L.
Click here to see answer by TimothyLamb(4379)

Question 936606: What is the slope-intercept form of 8x + 4y = 48
Click here to see answer by josmiceli(19441)

Question 936616: The rate of change represents the gas mileage in miles per gallon. Between which two measurements was the gas's mileage least?
Miles Driven 0 60 150 170 230 260
Gas Used(gal) 0 2 5 6 9 11
Click here to see answer by MathLover1(20849)

Question 936643: What percent of 7 is 14
Click here to see answer by Alan3354(69443)

Question 933626: fill in table using function rule y=-5x+3
Click here to see answer by Fombitz(32388)

Question 936764: Hello, I am a student who has skipped a grade( went from 2nd grade to 3rd) and I am in Algebra and it is kind of getting confusing.

1)Find the slope of the line that contains (8,4) and (-4, -5)
How do I solve this question, thank you!
Click here to see answer by Alan3354(69443)

Question 936805: The tables show linear relationships between x and y. Copy and complete the tables.
x -2 0 ? 7
y -18 ? 12 27
Click here to see answer by josgarithmetic(39617)

Question 936805: The tables show linear relationships between x and y. Copy and complete the tables.
x -2 0 ? 7
y -18 ? 12 27
Click here to see answer by MathLover1(20849)

Question 936828: x + 3y = 1 y = 3x +17. Is (-5,2) a solution to the system of equations
Click here to see answer by josgarithmetic(39617)

Question 936829: Write the equation in standard form:
parallel to 5y-4x=10 and passes through (-15,8)
Click here to see answer by josgarithmetic(39617)

Question 936874: I would really appreciate your help in the following question.
Lora has a gift card where all downloads for music cost the same amount. after downloading 2 songs, the balance on her card was $18.10. after downloading a total of 5 songs, the balance was $15.25
1. write an equation in slope-intercept form that represents the amount in dollars remaining on the card as a function of songs downloaded.
2. identify the slope of the line and tell what the slope represents.
3.identify the y intercept of the line and tell what it represents.
4. how many additional songs can Lora download when there is $15.25 left on the card?
Click here to see answer by Theo(13342)

Question 936943: the thrust SSC is the world's fastest land vehicle at 763 mph. Suppose the driver of a car whose top speed is 200 mph requests a race. The car gets a head start of one half hour. At what distance will the SSC pass the car?

Click here to see answer by Fombitz(32388)

Question 937064: A+2B+C=99
2A+B+C=142
2A+2C=154
Is it possible to solve this problem? Thank you
Click here to see answer by TimothyLamb(4379)

Question 937039: March the formula to the correct chart
y = -10x + 110
y = -1/2x + 110
y = 2x + 2
y = 1/10x - 197
y = x - 1/2
http://www.usatestprep.com/modules/gallery/files/10/1035/1035.png
http://www.usatestprep.com/modules/gallery/files/57/5785/5785.png
http://www.usatestprep.com/modules/gallery/files/57/5735/5735.png
http://www.usatestprep.com/modules/gallery/files/76/7602/7602.png
http://www.usatestprep.com/modules/gallery/files/19/1998/1998.gif

Click here to see answer by MathLover1(20849)

Question 937085: Which of the linear equations BEST represents the line of best fit for the scatterplot?
A. y = 1/3x - 1
B. y = 1/3x + 1
C. y = 3x + 1
D. y = 3x - 1
http://www.usatestprep.com/modules/gallery/files/12/1228/1228.gif

Click here to see answer by TimothyLamb(4379)

Question 937065: How do You solve x=3y?
Click here to see answer by Alan3354(69443)

Question 937087: The sum of two numbers is 20. When the larger number is subtracted from twice the smaller number, the difference is 4. What are the numbers?
Click here to see answer by TimothyLamb(4379)

Question 937092:
Which equation is the BEST fit for the data in the graph?
A. y = x + 2
B, y = 2x + 1
C. y = x - 1/2
D. y = 1/2v - 1
http://www.usatestprep.com/modules/gallery/files/30/3076/3076.png
Click here to see answer by MathLover1(20849)

Question 937103:
Which equation is the BEST fit for the data in the graph?
http://www.usatestprep.com/modules/gallery/files/30/3076/3076.png
A. y = x + 2
B. y = 2x + 1
C. y = x - 1/2
D. y = 1/2x - 1
Click here to see answer by mananth(16946)

Question 937105:
Jillian recorded how much fertilizer she gave her roses and the number of blooms they produced. What is a good line of best fit for the data?
http://www.usatestprep.com/modules/gallery/files/57/5757/5757.png
A. y - 8 = 1(x-4)
B. y - 8 = -1(x-4)
C. y - 8 = 4/3(x-4)
D. y - 8 = -4/3(x-4)

Click here to see answer by Edwin McCravy(20055)

Question 937120: Write a liner equation (slope-intercept) perpendicular to 2x+3y=-9 and passing through (-4,5).
Click here to see answer by lwsshak3(11628)

Question 937123: Which equation is the BEST fit for the data in the graph?
http://www.usatestprep.com/modules/gallery/files/30/3090/3090.png
A. y = x + 3
B. y = 9/8x + 4
C. y = 8/9x + 4
D. y = x + 4
Click here to see answer by oscargut(2103)

Question 937173:
A student graphs some data, as shown in the scatterplot. He wants to use algebra to find an equation of a line that roughly fits the data. Which of the steps outlined here will allow him to do that?
http://www.usatestprep.com/modules/gallery/files/43/4376/4376.png
A. He should eyeball fit a line by picking a slope and approximating a y-intercept.
B. He should plug the data into his calculator and then use the STATS menu and conduct a quadratic regression.
C.He should choose two points in the data that form a line. Find the slope between them and then write the equation in point-slope form.
D. He should choose two points in the data, find the slope between them, then plug the slope and one point into y = mx + b. That answer is his line.
Click here to see answer by ewatrrr(24785)

Question 937206: Linear Equations/ Gradient- if the lines equation was y=1/3x+4 would coordinate point (75,29) lie on the line?
Click here to see answer by ewatrrr(24785)

Question 937204: Which line best fits the data in the scatterplot?
A. y = 2x - 1
B. y = 2x + 1
C. y = 2x + 2
D. y = 2x + 3
http://www.usatestprep.com/modules/gallery/files/63/6312/6312.jpg
Click here to see answer by TimothyLamb(4379)

Question 937236: Which equation is the BEST fit for the data in the graph?
http://www.usatestprep.com/modules/gallery/files/30/3089/3089.png
A. y = 8x - 75
B. y = 75x - 8
C. y = 8x + 75
D. y = 75x + 8
Click here to see answer by TimothyLamb(4379)

Question 937122: Which of the choices is NOT a good example of a line of best fit?
A http://www.usatestprep.com/modules/gallery/files/121/12164/12164_thumb.jpg
B http://www.usatestprep.com/modules/gallery/files/121/12165/12165_thumb.jpg
C. http://www.usatestprep.com/modules/gallery/files/121/12166/12166_thumb.jpg
D. http://www.usatestprep.com/modules/gallery/files/121/12167/12167_thumb.jpg
Click here to see answer by TimothyLamb(4379)

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27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045