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

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Question 973352: y=1/2x+5 my question is graph the equation and find the y-intercept.
Click here to see answer by jim_thompson5910(35256) About Me 

Question 973380: hi how do you solve 4x + 9= -3

Click here to see answer by algebrahouse.com(1659) About Me 

Question 973385: What is an equation in standard form with integer coefficients for the line with a slope 8/7 through point (-4,-5)?
Click here to see answer by algebrahouse.com(1659) About Me 

Question 973401: find the x-and y- intercepts of the line 8x + 6y=24 and sketch on a graph
Click here to see answer by algebrahouse.com(1659) About Me 
Question 973401: find the x-and y- intercepts of the line 8x + 6y=24 and sketch on a graph
Click here to see answer by macston(5194) About Me 
Question 973401: find the x-and y- intercepts of the line 8x + 6y=24 and sketch on a graph
Click here to see answer by stanbon(75887) About Me 

Question 973383: What is the answeror solution of x+2y=6

Click here to see answer by macston(5194) About Me 

Question 973386: 1.find the equation of the line with the given slope and passing through the given point with 1 and point (-2,-2)

2.tuition fees change at university are given by f(x)=135 x + 450
3.for the line -2x + 9y =6 find
the slope
the y-intercept
the x-intercept
4.Find the x-and y- intercepts of the line 8x + 6y =24 and sketch its graph.

Click here to see answer by macston(5194) About Me 

Question 973467: I have to find the y intercept of the equation this is the equation. 3x-4y=50. But i forgot how to form the problem in a way that i can solve it. And google is just dumb. Its giving me the answer but i want to know how to solve it too.
Click here to see answer by josmiceli(19441) About Me 

Question 973526: How do we find a line parallel to y=4x-5 and passes through (-2,3)? I'm helping my child with homework. 4 is the slope, right? I'm not sure what the next step is.
Click here to see answer by Alan3354(69443) About Me 

Question 973547: If 2 + √3 is one root of xpower2
+ px + q = 0 Then p and q are:

Click here to see answer by josgarithmetic(39617) About Me 
Question 973547: If 2 + √3 is one root of xpower2
+ px + q = 0 Then p and q are:

Click here to see answer by MathTherapy(10552) About Me 

Question 973650: I am trying to figure out a system of equations problem:
-2x=-10y-2
-x=8y=5
Here's what I did:
I chose to use the top equation:
-2x=-10y-2
+2 +2
-2x+2= -10y
/10 /10
Y= -2/10X =2
Then, I plugged that answer into the equation:

-x+8(-2/10x+2) =5
I had no idea of how to finish, but this is what I did..........

I started with what was in the parenthesis and multiplied 8 times -2 and got -- -16/10x.
Then I multiplied 8 times the other 2 and got 16
-x + -16/10x + 16= 5
Then, I added the -x to the -16x and got -17/10x + 16= 5
I then divided 17/10 from both sides and got a -.0647058.... for x

I stopped here, because the answer is not making any sense



Click here to see answer by stanbon(75887) About Me 
Question 973650: I am trying to figure out a system of equations problem:
-2x=-10y-2
-x=8y=5
Here's what I did:
I chose to use the top equation:
-2x=-10y-2
+2 +2
-2x+2= -10y
/10 /10
Y= -2/10X =2
Then, I plugged that answer into the equation:

-x+8(-2/10x+2) =5
I had no idea of how to finish, but this is what I did..........

I started with what was in the parenthesis and multiplied 8 times -2 and got -- -16/10x.
Then I multiplied 8 times the other 2 and got 16
-x + -16/10x + 16= 5
Then, I added the -x to the -16x and got -17/10x + 16= 5
I then divided 17/10 from both sides and got a -.0647058.... for x

I stopped here, because the answer is not making any sense



Click here to see answer by Boreal(15235) About Me 

Question 973659: Write an equation for a linear function whose graph has the given characteristics.
Passes through (4, 0), parallel to the graph of
g(x) = − 3/4x − 8
f(x)=____

Click here to see answer by stanbon(75887) About Me 

Question 973693: The graph of y = n ( 1−x^2 ) has an area equal to 51, find the value of n.
Click here to see answer by rothauserc(4718) About Me 

Question 973772: graph the following inequality
y>1/6x

Click here to see answer by Alan3354(69443) About Me 

Question 973877: Find an equation of the line that satisfies the given conditions.through (1/2, -2/3); perpendicular to line 6x-12y=1
Click here to see answer by Boreal(15235) About Me 

Question 973900: what is the equation for the line that passes through the coordinates (1,2) and (5,10)?
Click here to see answer by JulietG(1812) About Me 
Question 973900: what is the equation for the line that passes through the coordinates (1,2) and (5,10)?
Click here to see answer by stanbon(75887) About Me 

Question 973984: What Is a equation of a line whose slope is steeper than y=1/2x + 5. Name an equation of line whose slope is less steep than y=1/2x + 5

Click here to see answer by Fombitz(32388) About Me 

Question 973960: Please help me solve this.
For the following function determine the values of x for which f is (a) an increasing function (b) a decreasing function (c) constant
f(x) = (4x+20)^9
-----------
4

f'(x) = 9((4x+20)^8)

Click here to see answer by Boreal(15235) About Me 

Question 973953: Find the slope intercept form for the line satisfying the conditions.
Perpendicular to -1/4 x+2,passing through the point (7,-3)

Click here to see answer by LinnW(1048) About Me 

Question 974013: The revenue for selling x units of a product is R=28.25x. The cost of producing x units C= 11.85x+50,000. For the producer to obtain a profit the revenue must be larger than the cost. For what values of x will this product return a profit? Round your answer to the nearest whole unit.
Click here to see answer by stanbon(75887) About Me 

Question 974048: Average cost of a new car has been changing approximately linearly with time. In 1990, the average cost was $16,950, and the average cost was $27,957 in 2008. Let X= number of years after 1990 and let Y= average cost of a new car. A) What ordered pairs can be written to express this information? and B) write equation of the line through these points in point slope form.
I set up ordered pairs as (1990, 16790) (2008, 27957). I labeled ordered pairs as X1,Y1 and X2,Y2, respectively to solve for the slope. Once I get slope can solve for equation of line using slope intercept formula Y= mx +b. I believe my order pairs are not correct and therefore my slope not correct and can not find error. Please provide assistance with correct ordered pairs and help with equation of the line through the ordered pairs two points in point-slope form.

Click here to see answer by stanbon(75887) About Me 

Question 974103: In which quadrant do the points of the graph of y=|x|-4 occur?
Click here to see answer by Boreal(15235) About Me 

Question 620337: Given the linear equation 2ax+3by+7c, where a, b, c > 0, if x decreases by 10 units, what is the corresponding change in y?

Thank you!!

Click here to see answer by charliebrwon69(1) About Me 

Question 974234: graph the function
y=4ˆx+2

Click here to see answer by stanbon(75887) About Me 
Question 974234: graph the function
y=4ˆx+2

Click here to see answer by MathLover1(20849) About Me 

Question 974201: (4,-2), parallel to -5x+7y=69
Click here to see answer by MathLover1(20849) About Me 

Question 974246: help me solve x+y=5 and x^2+y^2+3=0 concurrently.i

Click here to see answer by stanbon(75887) About Me 
Question 974246: help me solve x+y=5 and x^2+y^2+3=0 concurrently.i

Click here to see answer by josgarithmetic(39617) About Me 

Question 974339: Write the equation of the line that has an x-intercept of -3 and passes through the point (-3, 7).

Click here to see answer by Alan3354(69443) About Me 

Question 974359: 3x-y=3,7x+2y=20
Click here to see answer by Fombitz(32388) About Me 

Question 974358: write an equation in slope intercept form of the line satisfying the given conditions. perpendicular to the line y=1/5x+6 containing the points (2,-3)
Click here to see answer by Fombitz(32388) About Me 

Question 974397: Solve for y:
2x+y=12
-2x+3y=-4
Help please thanks :)!!

Click here to see answer by Alan3354(69443) About Me 

Question 974544: A mom bought 28 packages of Reeses Cups with 88 total.Each king size pack holds 4 cups and each regular size holds 2 cups. How many of each size did she buy?
Click here to see answer by josmiceli(19441) About Me 

Question 974561: Which of the following is the equation of a line that passes through (-2, -1) and (-4, -3)?
Click here to see answer by stanbon(75887) About Me 

Question 974619: Need help on the second part of this word problem. Showing steps would be helpful...Thank you :)
Construction of the Tower of Pisa was completed in 1360. By 1990, the tilt of the tower was so severe that it was closed for renovation. Renovators were able to reduce the tower's 1990 tilt by 17 inches. The resultant tower leans 13.5 feet (162 inches) off the perpendicular. When the tower was reopened in 2001, officials forecast that it would take 300 years for the tower to return to its 1990 tilt.†
(a) Construct a linear formula that models the lean of the renovated tower, where l is the number of inches from the perpendicular and t is the number of years since 2001.
The formula is: 162+(17/300)t

Use the formula from part (a) to predict the lean of the tower in 2150. (Round your answer to two decimal places.)

Click here to see answer by rothauserc(4718) About Me 

Question 974670: skecth the graph y =3-2x
Click here to see answer by anand429(138) About Me 

Question 974683: How do I graph -2y=4x
Click here to see answer by Boreal(15235) About Me 

Question 974782: Need help on how to work this problem and steps on how to solve it....Thank you :)
Based on data from June 2006, the forecast for maximum 5-day snow runoff volumes for the American River at Folsom, CA, can be modeled by
v = f(t) = −2.606t + 131.8
thousand acre-feet, where t is the number of days since the end of May 2006.† That is, the model forecasts the snow runoff for the 5-day period beginning on the selected day of June 2006. Find the inverse function.

f −1(v) =

Determine the value of
f −1(61.8).
(Round your answer to two decimal places.)


Click here to see answer by rothauserc(4718) About Me 

Question 974994: please help me solve this exams are coming up y − 8 = − 4/3(x + 3) how do you turn it into what ever form so i can graph it
Click here to see answer by jim_thompson5910(35256) About Me 

Question 975059: Need help on how to solve this...please include steps. Thank you :)
Assume that the real-world context can be accurately modeled with a linear function.
Between 1900 and 2003, the life expectancy for men and women in the United States increased dramatically. For men, life expectancy increased from 48 to 75 years. For women, life expectancy increased from 51 to 80 years.†
Model male life expectancy M as a function of female life expectancy f. (Round your coefficients to two decimal places.)

Click here to see answer by stanbon(75887) About Me 

Question 975075: Write an equation in slope intercept form.
Line contains the point (-3,5) and is perpendicular to the line y=3x-4?
Line contains the point(2,3) and is parallel to 5x-y=10?

Click here to see answer by lwsshak3(11628) About Me 

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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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