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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 184148: Find the equation of a line with a slope of 4 and passing through(-2,7)
Click here to see answer by Alan3354(69443)

Question 184149: I'm unsure on how to explain the basic method for graphing a linear equation and I need to show an example of a linear equation and how I would graph it.
Click here to see answer by Alan3354(69443)

Question 184192: What is the equation of the line passing through the points (-3,0) and (0,-3)?
Click here to see answer by jim_thompson5910(35256)

Question 184265: i am struggling with linear graphing. Please help me graph the following exersise.
y=-3x-7
15x+5y=-35
thank you

Click here to see answer by checkley77(12844)

Question 184288: how do you do the x-intercept
Click here to see answer by stanbon(75887)

Question 183861: How do you solve this linear system by using substitution?
x= 6-4y
2x-3y=1
Click here to see answer by jojo14344(1513)

Question 184329: Suppose that pure alcohol is added to a 24% alcohol mixture. Which one of the following concentrations could not be obtained? A.22% B.26% C.28% D.30%
Click here to see answer by Alan3354(69443)

Question 184333: y-1=-2(x-4)
Click here to see answer by jim_thompson5910(35256)

Question 184371: how would i solve thge system of equations using substition method?
3=5x-3y+10 &
y=2x+4 ????
Click here to see answer by solver91311(24713)

Question 184371: how would i solve thge system of equations using substition method?
3=5x-3y+10 &
y=2x+4 ????
Click here to see answer by Alan3354(69443)

Question 184401: at what points does the graph of y=2x^2-4x-16 intersect the x-axis?
Click here to see answer by josmiceli(19441)

Question 184410: My question is..... The formula y = 2.205x converts a mess x in kilograms to a weight y in pounds. A sports car has a mass of 1270 kilograms. What is its weight in pounds?
Click here to see answer by checkley77(12844)

Question 184483: 2. For the systems of linear equations in questions 1-3
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
2x + 3y = 8 and 3x + 2y = 7
help is much appreciated!
G
Click here to see answer by josmiceli(19441)

Question 184485: A university bookstore recently sold a wirebound graph-paper notebook for $2.50, and a college-ruled notebook for $2.30. At the start of spring semester, a combination of 50 of these notebooks were sold for a total of $118.60. How many of each type were sold?
thank you.

Click here to see answer by checkley77(12844)

Question 184523: A line that passes through (7,3) and has a slope of -1.
What I've done so far y= 2/3(-1)-4
y=2/3(3/2)=6/6= 1 - 4 = -3
(7,3) and (1,-3)
Click here to see answer by Alan3354(69443)

Question 184600: Find the slope of the line being described. Graph all lines.
Perpendicular to 6x-4y=16 and thru (-4,6)
Click here to see answer by jim_thompson5910(35256)

Question 184610: Please help me solve:
Slope 2/3; through (-9, 4)
using point slope fomula
Click here to see answer by vleith(2983)

Question 184650: Write an equation in standard form with integer coefficients for the line with slope 13/19 going through the point (-2,-1)
What is the equation of the line
Click here to see answer by ankor@dixie-net.com(22740)

Question 184683: 2x+ 5y = 16 5x-2y=11
How to Graph each system of equation then determine if the systme has one solution or no solution or infinity many solution
Click here to see answer by stanbon(75887)

Question 184691: Write a linear equation in two variables that are satisfied by (-3,5). Are the equations independent or dependent?
Click here to see answer by solver91311(24713)

Question 184702: Find an equation of the linear equation of the line satisfying the given conditions. Give answer in slope-intercept from if possible
Passing through (2,-8) and parallel to x= 2
Please i want the answer with steps, Thankss
Click here to see answer by vleith(2983)

Question 184721: solve using substitution method
4=3x-5
4x+y=23
Click here to see answer by Alan3354(69443)

Question 184719: 2.
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3
need help desperately! Thank you.

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

Question 184615: 2x-5=7
Click here to see answer by Alan3354(69443)

Question 184857: Avis Proctor works at a gourmet delicatessen. She is preparing a cheese tray for a large reception. She is using some cheeses that sell for $8 per lb and others that sell for $12 per lb. How many pounds of cheese at each price should she use in the oreder for the mixed cheeses on the tray to wigh of 56 lb and sell for $10.50 per lb?
Click here to see answer by solver91311(24713)

Question 184832: how do you do the substitution method
Click here to see answer by alaccalac(13)

Question 184878: A small plane travels 200 mph with the wind and 120 mph against it. Find the speed of the wind and the speed of the plane in still air.
Click here to see answer by solver91311(24713)

Question 184938: #3 Graph.
I am so confused. I can get the problem, but I can't draw up the graph...
P (0 , 3) is the intersection where the lines cross.
1st line:
- X intercept: P(3, 0)
- Y intercept: P(0,3)
2nd line:
- X intercept: P(-3,0)
- Y intercept: P(0,3)
what does this look like in a graph?
Thanks.
Click here to see answer by stanbon(75887)

Question 184946: A small plane travels 200mph with the wind and 120 mph against it. Find the speed of the wind and the speed of the plane in still air?
Click here to see answer by checkley77(12844)

Question 184977: Translate the following into a system of equations, then solve it.
A customer walks into an electronics store and buys four MP3 players and six sets of headphones, paying $740. A second customer buys five MP3 players and four sets of headphones, and pays $785. How much does an MP3 player cost? How much does a set of headphones cost?
Click here to see answer by SandyBeach(2)

Question 185048: determine whether each equation is a linear equation. Explain. If an equation is linear, identify A,B, and C.
y=-1
3x=5y+7
Click here to see answer by Alan3354(69443)

Question 185056: i dont understand this at all none of this chapter makes sense so how do i do it? i missed alot of school cause i was sick we have a test i need help with this a soulution to help me understand how 2 work the problem out an how 2 graph it im am freshmen SO PLZ HELP!!
Click here to see answer by Alan3354(69443)

Question 185062: Anita started walking from her home toward the park at 3 p.m.. By 4:30 p.m. she had reached the park, which is 4 miles away from her home.
Write an equation that relates time x and distance y from home, assuming Anita's speed is constant.
Click here to see answer by stanbon(75887)

Question 185053: 1. Graph y = 3x � 5
Click here to see answer by jim_thompson5910(35256)

Question 185119: what can I do to get a hold of this algebra I cannot seem to learn the basics of linear equations in two variable, slope of lines, rectangular coordinate system,slope- intercept form of a line, point- slpoe formula,and application of linear equation. my question is where can i go to read up or self- study more i'm feeling really lost tat thie point i am willing to try anything please help the textbook is beginning ans intermediate algebra by miller//o'nell//hyde. ijust want to know where i can go on-line or off to help myself for there arre to many prblem to be asking this site for help
Click here to see answer by edjones(8007)

Question 185055: 1. Graph y = 3x � 5
2. Graph 3x + 2 = 5x - y
3. Graph y = |x| - 2
4. Graph the 2 lines below; and from your graph, read off the point of intersection.
y = 2x + 3
y = x + 5

Click here to see answer by jojo14344(1513)

Question 185190: x squared minus 3x = 0
Click here to see answer by vleith(2983)

Question 185189: x squared minus 3x = 0
Click here to see answer by checkley77(12844)

Question 185294: There is a question 179241 and answer number 134172. I didn't ask the question but it is the same question that I need answered. I was unable to view the answer when I clicked on the link that said to click to view the answer. How would I be able to view the answer for question 179241?
Click here to see answer by vleith(2983)

Question 185054: 1. Graph y = 3x � 5
2. Graph 3x + 2 = 5x - y
3. Graph y = |x| - 2
4. Graph the 2 lines below; and from your graph, read off the point of intersection.
y = 2x + 3
y = x + 5

Click here to see answer by jojo14344(1513)

Question 185342: I am having some trouble understanding slopes. I know that M stands for slope, and that slope is a number that tells us how steep a line is and if it is decreasing or inceasing. I dont however, know how to solve something like this: find slope of the line that passes through (1,3) & (2,5). Please help me, I am so lost! thanks.
Click here to see answer by Alan3354(69443)

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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